Logitech K520 Wireless Keyboard Full Size Black Open Box No Mouse No Receiver

Logitech K520 Wireless Keyboard – Full Size - No USB Receiver Not Tested

Logitech K520 Wireless Keyboard Full Size ~ No USB Receiver

Logitech K520 Wireless Full Size Black Keyboard NO USB DONGLE RECEIVER

Logitech K520 Full-Size Wireless Keyboard - NO USB RECEIVER

LOGITECH K520 Full-Size Wireless Keyboard With Unifying USB Receiver - TESTED