Logitech Signature MK650 Combo for Business - keyboard and mouse set - QWERTY - UK - graphite Input Device
Lenovo Unified Pairing - wireless mouse / keyboard receiver - USB
Connect a supported PS/2 keyboard to the USB port on your computer. The GC46MFKEY PS/2 Keyboard to USB Adapter features a USB-A male connector and a 6-pin (PS/2) female port, allowing you to connect a PS/2 keyboard to a computer through a USB port.
Dell Universal Pairing Receiver WR221 - wireless mouse / keyboard receiver - USB, RF 2.4 GHz
Convert a PS/2 keyboard and mouse to a single USB interface. This PS/2 USB Adapter converts a single USB port into two universal PS/2 ports, letting you connect any PS/2 peripheral (e.g. mouse, keyboard) to a computer through USB.