Amazon.com: TRENDnet USB to PS/2 Converter, Easy Install, Universal Plug & Play, USB 1.1/2.0/3.0, Windows 8.1/8/7, Vista, XP, Mac OS 10.4-10.9, 13-inch Length, TU-PS2 : Electronics
Amazon.com: TRENDnet USB to PS/2 Converter, Easy Install, Universal Plug & Play, USB 1.1/2.0/3.0, Windows 8.1/8/7, Vista, XP, Mac OS 10.4-10.9, 13-inch Length, TU-PS2 : Electronics
Buodes Mouse Pads for Desk Mechanical Define the game USB Wired 6400DPI Adjustable Gaming Mouse Mice for PC - Walmart.com
StarTech.com Replacement PS/2 Mouse to USB Adapter F/M - use with PS/2 and USB capable mouse only (GC46MF)
SANOXY USB to Dual PS2 Keyboard Adapter for Keyboard, Mouse SANOXY-VNDR-Dual-pS2-blu-2port - The Home Depot
2Pcs PS/2 Male to USB Female Port Adapter Converter for PC Keyboard Mouse Mice|Computer Cables & Connectors| - AliExpress
Digitus Conwerter USB 1.1 for PS/2
PERIMICE-209 WP - Wired PS/2 Mouse with Scroll Wheel and 1000 DPI in W – Perixx USA
Monoprice PS/2 Keyboard/Mouse to USB Converter Adapter, Black (110934)
PERIMICE-209 P - Wired PS/2 Mouse with Scroll Wheel and 1000 DPI – Perixx USA
Finally found one, Official PlayStation 2 USB mouse : r/gamecollecting
CORSAIR Gaming M55 RGB PRO - mouse - USB - black - CH-9308011-NA - Mice - CDW.com
G821 2.4G Wireless Gaming Mouse Adjustable 2400DPI Optical Computer Mouse for PC Laptop without Battery Black - Walmart.com
1pcs Usb Female To Ps2 Ps / 2 Mouse Keyboard Converter Male Adapter Computer Converter In Stock - Pc Hardware Cables & Adapters - AliExpress