prof2000
Top 250 Contributor
 
 
prof2000's Stats
 
  • Review Count
    181
  • Helpfulness Votes
    245
  • First Review
    December 16, 2018
  • Last Review
    February 28, 2025
  • Featured Reviews
    0
  • Average Rating
    4.9
 
Reviews Comments
  • Review Comment Count
    39
  • Helpfulness Votes
    13
  • First Review Comment
    June 21, 2020
  • Last Review Comment
    March 24, 2025
  • Featured Review Comments
    0
 
  • Question Count
    350
  • Helpfulness Votes
    29
  • First Question
    November 24, 2018
  • Last Question
    June 23, 2025
  • Featured Questions
    0
 
  • Answer Count
    178
  • Helpfulness Votes
    329
  • First Answer
    December 2, 2018
  • Last Answer
    February 28, 2025
  • Featured Answers
    0
  • Best Answers
    49
 
 
prof2000's Reviews
<<prev 1 ... 3 4 5 6 7 ... 19 next>>
 
The Best Buy essentials 4-Port USB 2.0 Hub uses a single USB port to connect up to four USB devices. Just plug the hub into your computer, and the blue LED indicating light lets you know it’s ready for your devices. A 5V, 500 mAh port output delivers consistent and quick power, while a data transfer speed of up to 480 Mbps performs at the speed you need.
 
A great way to provide power
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on October 13, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
I have a wealth of items that need power via a usb port-
fans, speakers, etc. This powered usb hub fills that need
very well - and keeps my usb 3 ports free for items that
need data transmission. It is a very cost effective tool.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 27
+1point
1out of 1found this review helpful.
 
 Crucial - P3 1TB Internal SSD PCIe Gen 3 x4 NVMe
Crucial - P3 1TB Internal SSD PCIe Gen 3 x4 NVMe
Basic bootup speeds won’t cut it — not at work, on the go, or in the game. But the Crucial P3 SSD is anything but basic. With NVMe performance that’s more than 6x faster than SATA2 and storage capacities up to 4TB3, the P3 leaves older storage technology in the dust. Get faster bootups, downloads and file transfers, and store all your files, photos, videos, apps, and games with room to spare with the quality and dependability you expect from Crucial.
 
Use for system image backup
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on October 13, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
I have an older machine that uses one of these for the
system drive. It works so well, and is priced so well, that
I purchased a second one to use for system image backups. I clone my system drive to this each month, to
use as a backup. It is a fairly fast process, and provides
a good way to recover if a problem develops.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 14
+1point
1out of 1found this review helpful.
 
 Crucial - MX500 2TB Internal SSD SATA
Crucial - MX500 2TB Internal SSD SATA
Start your system in seconds, store up to 2TB of your irreplaceable files, and upgrade with a drive you can count on. Improve your system with the Crucial® MX500 2TB 3D NAND SATA 2.5 Inch Internal SSD, an SSD built on quality, speed, and security that’s all backed by helpful service and support. It’s worth it.
 
Fast and reliable storage
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on October 2, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
Images for this Review
(click to see full-size image)
User submitted photo
This drive was purchased to provide fast and reliable
storage for my new gaming computer. The speeds I
obtain are as advertised (see results below). I use this
drive to store large files that I use intermittently. It
does a very good job.
This was a good purchase.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 67
0points
0out of 0found this review helpful.
 
The CORSAIR MP600 PRO LPX PCIe Gen4 x4 NVMe 1.4 M.2 SSD provides high-performance storage expansion optimized for PS5, boosting your console’s storage by up to 4TB. PCIe Gen4 technology achieves lightning-fast sequential read speeds of up to 7,100MB/sec and sequential write speeds of up to 6,800MB/sec, so large game files load faster than ever. The M.2 2280 form-factor and pre-installed low-profile aluminum heat spreader enable the MP600 PRO LPX to fit directly into your PlayStation 5, while meeting all PS5 M.2 size requirements. Backed by a comprehensive five-year warranty, the MP600 PRO LPX delivers expanded storage and sustained high performance to your PS5 right out of the box.
 
Powerful upgrade for a gaming computer
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on October 2, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
Images for this Review
(click to see full-size image)
User submitted photo
I got this drive as an upgrade for my system drive in my
new gaming computer. This drive is as fast as advertised
(see my test results below). At the start of the test it was
at 37deg C. At the end of the test it was at 51deg C, but it
was back to 37deg C in just 4 minutes.
I had no issues cloning my system on to this drive using
Acronis. I have had no issues running my new gaming
computer with this drive in the 2 months I have had this
drive.
This was a good purchase, and has enhanced the
capabilities of my new gaming computer.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 61
+1point
1out of 1found this review helpful.
 
Geek Squad® Certified Refurbished products are thoroughly, painstakingly and lovingly tested, so you can be sure that your device will work right, right away. Learn more about Geek Squad® Certified Refurbished products.Customize your laptop with this refurbished Samsung EVO Plus SSD. The 3500MB/sec. read speed and 3300MB/sec. write speed ensure swift data access, and the V-NAND technology minimizes power consumption for efficiency. This Samsung EVO Plus SSD has 2TB of storage space, providing fast start-up times, while the nickel-coated controller and heat spreader help prevent overheating.
 
Works well as my new system drive
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
I cloned the system drive of my 5 year old computer to this refurbished drive to get double the space, and a huge boost in speed. It is working well. I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 26
0points
0out of 0found this review helpful.
 
Ready, set go! Move between screens and straight through your to-do list with Logitech M720 Triathlon, the athletic mouse built for endurance, versatility, and comfort. With EASY-SWITCH technology you can pair your mouse with up to 3 computers and seamlessly switch between them with a click of a button. Reliable hyper-fast scrolling lets you fly through documents and web pages or switch to click-to-click scrolling when you need precision. A true athlete, this portable mouse is designed to endure, with buttons built to withstand up to 10 million clicks. Focus on what really matters thanks to the extended battery life of up to 24 months of power on a single AA battery. Simply connect M720 Triathlon wirelessly via the included Logitech Unifying receiver or via Bluetooth smart technology. Download Logitech Options Software to unlock the full range of personalization for your Logitech mouse.
 
An excellent mouse
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
This is an excellent mouse for the money. It is solid and well made, with all the features that I need. It fits my relatively large hand well, and works well on a bare table top. I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 11
+1point
1out of 1found this review helpful.
 
For students and families who want classic Office apps installed on one PC or Mac for use at home or school.
 
A good deal without a subscription
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
This package provides me with familiar software without having to pay a monthly subscription fee. For my work at home it fulfills all my needs. I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 36
0points
0out of 0found this review helpful.
 
Extend the power cord of your indoor and outdoor electronics for a better reach. The Best Buy essentials 12' AC Extension Power Cord adds 12 ft. of length to your household appliances, outdoor electronics and more. A 16 AWG, three-prong construction works with a wide-range of devices, granting a secure fit for optimal safety and compatibility. Backed by Best Buy, this extension cord holds up to 15 A of power and is grounded, providing safe and secure power. Its black design blends in with the rest of your cords, giving it a clean and discreet look. Lengthen the power cord of your electronics with this secure extension cord that’s backed by Best Buy.
 
A well made, heavy duty extension power cord.
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
Ease of Use
5.0 out of 5
5.0
This is a well made, heavy duty extension power cord. It is solid, and works well. I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 45
0points
0out of 0found this review helpful.
 
Prevent voltage spikes during electronic repairs with this iFixit antistatic wrist strap. The polyester and stainless steel weave offers dependable durability for long-lasting use, while the elastic band with an adjustable buckle provides a customized fit. This 6-foot iFixit antistatic wrist strap has a clip for a secure connection, and the 1-megaohm resistance slows discharges, protecting the user and equipment from shocks.
 
It works well
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
Ease of Use
5.0 out of 5
5.0
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
This is an essential item for those who need to work with the insides of sensitive electronics, like computers. It works well, and fits my relatively large wrist at its maximum diameter. It works well, and I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 32
0points
0out of 0found this review helpful.
 
Light up your work desk with this OttLite curved LED desk lamp. ClearSun LEDs help minimize eyestrain during extended periods of use, and the flexible rubberized neck lets you direct light where it's needed most. This OttLite curved LED desk lamp has a touch-sensitive switch for adjusting brightness settings easily.
 
A very good desk lamp
Customer Rating
5.0 out of 5
5.0
Posted by: prof2000
on September 2, 2024
Quality
5.0 out of 5
5.0
Value
5.0 out of 5
5.0
Ease of Use
5.0 out of 5
5.0
This is a very good desk lamp. The base has a very good weight to it, and the neck can be easily bent to suit your needs. The maximum brightness is very bright indeed.
I recommend it.
I would recommend this to a friend!
Verified Purchaser:Yes
Mobile Submission: False
Length of ownership: 18
0points
0out of 0found this review helpful.
 
prof2000's Questions
<<prev 1 ... 31 32 33 34 35
 
 Sennheiser - Wired Stereo Gaming Headset - Red/Black
Sennheiser - Wired Stereo Gaming Headset - Red/Black
Explore digital landscapes and hear every auditory detail with this Sennheiser gaming headset. It delivers high-fidelity sound, supporting better accuracy in first-person shooters and more immersive RPG experiences. This Sennheiser gaming headset includes a noise-canceling mic for clear communication and an adjustable headband for long-term comfort as you play or listen.
 

Will this work well with a smart phone?

5 years, 2 months ago
by
Posted by: 
prof2000
 
Upgrade audio entertainment with this Insignia multifunction stereo boombox. Bluetooth technology, an AM/FM radio, and cassette and CD compatibility provide multiple playback options, while two stereo speakers ensure immersive sound reproduction. This Insignia multifunction stereo boombox powers up through an AC adapter or six D batteries for versatility and features soft-touch buttons and a backlit display for easy operation.
 

Does the cassette player play stereo cassettes in true stereo? That is, does it have a stereo head, and does it route the music properly to the two speakers?

5 years, 3 months ago
by
Posted by: 
prof2000
 
 Google - Pixel 3a - 64GB (Unlocked) - Clearly White
Google - Pixel 3a - 64GB (Unlocked) - Clearly White
Enhance your work and entertainment with this Google Pixel 3a smartphone. The high-resolution camera lets you capture detailed photos, while the built-in Google Assistant offers call screening to save valuable time. This Google Pixel 3a smartphone features Titan M security for added protection, and the adaptive battery provides up to seven hours of use on a 15-minute charge.
 

If I buy the unlocked version, can I use it in England with a carrier there? Can I change the sim card when I visit Italy?

5 years, 7 months ago
by
Posted by: 
prof2000
 
Charge 4 AA or 4 AAA batteries easily with this Panasonic eneloop K-KJ17MCA4BA battery charger, which features an LED display with 4 indicator lights to let you monitor the status of each battery. Four included eneloop AA batteries offer immediate use.
 

Can the charger work in England? (220-240V) Is it automatic voltage switching?

5 years, 7 months ago
by
Posted by: 
prof2000
 
Energizer Power Plus Rechargeable AA Batteries offer a convenient way to power your gadgets while saving money and reducing waste. Made with 15% recycled materials, these AA rechargeable batteries use innovative, industry-leading technology for reliable use. These chargeable batteries are designed to prevent damaging leaks. Use these Energizer rechargeable batteries as long-lasting batteries for cameras, game systems, toys and other battery-powered items, so you always have a convenient power source available. These Energizer AA batteries come pre-charged and can be recharged in an Energizer battery charger hundreds of times. Each AA rechargeable battery can hold its charge for up to 12 months in storage, and the double A batteries have up to a 5 year battery life with normal use. Energizer is the number 1 recharge brand.
 

How many times can these batteries be charged?

5 years, 7 months ago
by
Posted by: 
prof2000
 
Conveniently charges 4 AA or AAA NiMH rechargeable batteries at the same time. 3-5 hour charge time with auto shut off to prevent overcharging and battery damage. Manufactured in China. The charger is equipped with audio and visual alerts. A red light means that charging has started, and you will hear an audible beep when charging begins. A yellow light appears when charging is 50 percent complete and charging is continuing. A green light means charging is complete, and the batteries are 100 percent full. You will hear an audible beep upon completion. If a bad battery is detected, a red X will illuminate, and the charger generates a repetitive audible beep upon detection. Audio and visual alerts:Red light - Charging has started; audible beep when charging begins. Yellow light - Charging is 50% complete and charging. Green light - Charge is complete and batteries are 100% full; audible beep upon completion. Bad Battery Detection Alert - If a bad battery is detected a red ‘x’ will illuminate; repetitive audible beep upon detection.
 

How many times can the included batteries be charged?

5 years, 7 months ago
by
Posted by: 
prof2000
 
 Ultimate Ears - WONDERBOOM Portable Bluetooth Speaker - Black
Ultimate Ears - WONDERBOOM Portable Bluetooth Speaker - Black
Take your music anywhere with this Ultimate Ears WONDERBOOM portable Bluetooth speaker. The built-in speakers deliver surprisingly loud, detailed audio, and the battery offers up to 10 hours of listening per charge. This Ultimate Ears WONDERBOOM portable Bluetooth speaker has a waterproof chassis that lets you listen to music at the pool.
 

How many drivers are in this speaker?

5 years, 7 months ago
by
Posted by: 
prof2000
 
 Ultimate Ears - BOOM 2 LE Portable Bluetooth Speaker - Phantom
Ultimate Ears - BOOM 2 LE Portable Bluetooth Speaker - Phantom
Enjoy epic outdoor adventure playlists with this Logitech Ultimate Ears Bluetooth speaker. It supports voice commands via Siri or Google Now, and the 100-foot wireless range lets you stream remotely from a distant device. Set alarms and access DJ features with this limited-edition Logitech Ultimate Ears Bluetooth speaker via its companion app.
 

How many drivers are in this speaker?

5 years, 7 months ago
by
Posted by: 
prof2000
 
 Ultimate Ears - BOOM 2 LE Portable Bluetooth Speaker - Phantom
Ultimate Ears - BOOM 2 LE Portable Bluetooth Speaker - Phantom
Enjoy epic outdoor adventure playlists with this Logitech Ultimate Ears Bluetooth speaker. It supports voice commands via Siri or Google Now, and the 100-foot wireless range lets you stream remotely from a distant device. Set alarms and access DJ features with this limited-edition Logitech Ultimate Ears Bluetooth speaker via its companion app.
 

What are the physical dimensions of this speaker? The info in the specs can't be correct.

5 years, 7 months ago
by
Posted by: 
prof2000
 
 Lenovo - IdeaCentre 510A Desktop - Intel Core i5 - 8GB Memory - 1TB Hard Drive
Lenovo - IdeaCentre 510A Desktop - Intel Core i5 - 8GB Memory - 1TB Hard Drive
Lenovo 510A-15ICB Desktop: Upgrade your home computer with this Lenovo IdeaCentre desktop PC. The fast Intel Core i5-8400 processor and Intel UHD 630 graphics card easily handle complex software, and you can store your photos and files on the big 1TB hard drive or make use of the seven-in-one card reader to save on other storage media. Connect this Lenovo IdeaCentre computer wirelessly to other devices using the built-in Bluetooth or Wi-Fi.
 

How many sata ports are on the motherboard, and are they all accessible? Can a second hard drive be installed?

6 years, 7 months ago
by
Posted by: 
prof2000
 
prof2000's Answers
<<prev 1 2 3 4 5 ... 18 next>>
 
Carry and preserve important files wherever you go with this Western Digital easystore desktop hard drive. The 18TB capacity offers ample storage space for your files, while the USB interface ensures compatibility with a wide range of devices. This Western Digital easystore external hard drive has a compact profile for increased portability, and the included WD Discovery software makes backing up data easy.
 

hello, is the power brick 110 up to 240v?

The power brick I got with my 18tb easystore drive
says it accepts input of 100-240V, 50-60Hz, 0.6A max.
It has a standard US 2-prong blades. It is international capable, but you need to provide the adapter needed for the country you use it in.
1 year, 3 months ago
by
Posted by: 
prof2000
 
 WD - easystore 16TB External USB 3.0 Hard Drive - Black
WD - easystore 16TB External USB 3.0 Hard Drive - Black
Carry and preserve important files wherever you go with this Western Digital easystore desktop hard drive. The 16TB capacity offers ample storage space for your files, while the USB interface ensures compatibility with a wide range of devices. This Western Digital easystore external hard drive has a compact profile for increased portability, and the included WD Discovery software makes backing up data easy.
 

I purchased this, but cant find the power button to turn it off. I hate to leave it plugged in all the time when it's not in use most of the time. Is there a power button on it? If not, then do i have to physically unplug when it's not in use?

The WD Easystore external drives do not have a power button to turn the unit off and on, A possible solution would be to plug the power brick in to a power strip with a switch.

(I think that another version of this drive sold by other retailers - the WD Elements external drive - does have a power button on the back. However, this button looks to be an electronic switch. So even that drive will remain connected to power when turned off with the switch.)
1 year, 3 months ago
by
Posted by: 
prof2000
 
Capture sharp photos during your next vacation with this Canon PowerShot ELPH 360 digital camera, which features a 3" color LCD screen, so you can review your photos before sharing. The high-sensitivity CMOS sensor ensures clear images. ..
 

Can you see the screen if taking vacation pictures outside in the sun?

The ELPH 360 does NOT have a viewfinder, only
the viewing screen on the back.
1 year, 4 months ago
by
Posted by: 
prof2000
 
The Insignia Slim Stylus for Smartphones, Tablets and More (3-Pack), easily type and draw on your touch screen devices wherever you are. Compatible with your iPhone, iPad, Android smartphone, tablets and any devices equipped with capacitive touch screens, create impressive digital drawings or use it to play games. A sensitive silicone tip glides across your screen without causing any scratches and omitting fingerprint smudges. They also come in a pack of three, giving three of your most used electronics its own stylus. Made of aluminum, this stylus works just like a pencil, making it easy to carry and use whenever you need it.
 

Gosh, the questions people ask about but trust me, I have tried all styles of these products before and these are absolutely fantastic!🤗

I agree wholeheartedly!
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

Does the base of the lamp light up? (or is it just white?)

The base of the lamp does not light up. It is off white in color.
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

the lamp is white or black? and the light is daylight or warm white?

The upper part of the lamp is black. The lower part of the base is also black. The upper surface is off white in color. The color of the light emitted a cool white. It provides accurate rendition of the color of what it illuminates.
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

Does this lamp offer wireless charging?

This lamp does not offer wireless charging. The large base is to provide stability to the lamp.
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

Is this lamp cordless? Looking for one to use where it operates on some sort of battery as I don't have outlets nearby.

The lamp is not cordless. It has a proprietary cable that that goes to a transformer that has to be plugged into a standard wall outlet.
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

does this have a USB A or USB C charger?

The charger on the lamp is USB A.
1 year, 5 months ago
by
Posted by: 
prof2000
 
Bring healthy natural lighting everywhere you go! The OttLite Strive LED Desk Lamp features OttLite’s exclusive ClearSun LED technology – developed to reduce eyestrain by up to 51%. Our flexible gooseneck allows you to position this anywhere you need it to give you that light you need. Makes a perfect desk lamp for your student still at home or for those going off to college. Provides great light output and 3 dimming options. Charge your devices with the 5V 2.1 USB charging port on the backside. This will charge all phones and even your IPAD unlike many others with USB Outlets.
 

Is this lamp pretty stable? Or does it fall over easily? The base looks pretty small in the photos.

The lamp is very stable. The base is 5" X 7". In addition it has heft (must have weights in it). I have bumped it on occasion, and it remains upright and stable.
1 year, 5 months ago
by
Posted by: 
prof2000