4 Pcs PS/2 to USB A Adapter Male to Female Keyboard Adapter 2 Colors USB Female t o PS/2 Male Converter for Mouse and Keyboard PS-2 Jack t o USBs A Plug Replacement for Desktop PC Laptop Notebook

You probably need one of these to get the mouse working (assuming mouse is USB) : https://www.amazon.com/Adapter-Keyboard-Converter-Replacement-Notebook/dp/B0FL29433C/ Or just pull out the hard drive -- you probably need an adapter too to connect to USB.