This Intel Evo-Certified, Lenovo Yoga 7i 15, model number 82BJ0003US, is compatible with an AES Protocol Active/Digital Pen, which is sold separately, like this one: https://www.bestbuy.com/site/wacom-bamboo-ink-smart-stylus-for-windows-ink-2nd-generation-gray/6374981.p?skuId=6374981

Yes it is.

This Lenovo Legion Tower 5i Gaming Desktop Computer, model number 90RS001UUS, ships with a internal, 400W power supply, with 90 Percent efficiency ( PWR_SUPPLY 100-240Vac, 400W 90% PSU POWER SUPPLIES INTERNAL, Lenovo Part Number - 5P50V03178). We recommend you consult with your certified technician about your upgrade options. Here is a link to the complete parts list for this model configuration: https://pcsupport.lenovo.com/us/en/products/desktops-and-all-in-ones/legion-series/legion-t5-26iob6/90rs/90rs001uus/parts/display/model

Check both your power settings and what the computer is doing when you close the lid. Also, be sure that whatever peripheral devices that are connected to the Yoga 9i 14 are powered off too, as the Thunderbolt Ports will continue to power external devices even when the computer is turned off. If all external devices are powered off, you can check and change your power management settings by following these instructions: https://support.microsoft.com/en-us/windows/how-to-adjust-power-and-sleep-settings-in-windows-26f623b5-4fcc-4194-863d-b824e5ea7679#:~:text=To%20adjust%20power%20and%20sleep%20settings%20in%20Windows%2011%2C%20select,%26%20battery%20%3E%20Screen%20and%20sleep. To check and change what your Yoga 9i 14 does when you close the lid: https://www.elevenforum.com/t/change-lid-close-action-in-windows-11.3356/#:~:text=1%20Open%20the%20Control%20Panel,on%20the%20Power%20Options%20icon.&text=3%20In%20both%20the%20On,click%2Ftap%20on%20Save%20changes. If the issue continues, we recommend you contact Lenovo Premium Care for additional help at: 888-278-9707.