Will this fit in a ASUS K501J-RX05
Windows 10 is installed and 64 bit OS Pentium (R) Dual-Core CPU T4200 @ 2.00 GHZ
It should normally fit if the drive is 2.5inches. You can always buy it and if it doesn't fit, return it. Best buy has a 15-45 day return policy with no restocking fee.