Logitech Wireless Keyboard & Mouse Combo w/ Unifying Receiver Dongle (K520/M310)

Logitech Wireless Combo Mk520 With Keyboard and Laser Mouse (920-002553)

Logitech K520 Wireless Keyboard & M310 Mouse Combo + Unifying wireless receiver

Logitech MK520 (K520) Wireless Keyboard – Keyboard ONLY no Dongle or Mouse

Logitech K520 Wireless Keyboard With Receiver Dongle - Tested!

Logitech Wireless Combo Mk520 With Keyboard and Laser Mouse (920-002553)

Logitech K520 Wireless Keyboard (NO RECEIVER) TESTED

Logitech Wireless Combo Mk520 K520 Keyboard M310 Mouse Receiver(920-002553) Used