Logitech MK540 Combo - K540 Keyboard, M310 Mouse - Comes w/ Unifying Rec Dongle!

Logitech K540 Advanced Full Size Wireless Desktop Keyboard NO Unifying Receiver

Logitech K540 Wireless ITALIAN LAYOUT Keyboard MK540 - (No Unifying Dongle)

Logitech K540 Unifying Wireless Keyboard Matte Black NO DONGLE

Logitech K540 Advanced Wireless Keyboard WITH Unifying Receiver Included

Logitech K540 Advanced Full Size Wireless Desktop Keyboard W/Unifying Receiver

Pre-owned Logitech K540 Wireless Keyboard - Comes With Unifying Receiver Dongle

Logitech k540 keyboard. Missing the USB piece.