For MK710 MK520 MK330 MK270 Portable 6mm Unifying Receiver Connector Part | eBay
PC/Laptop AZERTY French Layout 2.4 GHz Wireless with Unifying USB-Receiver Logitech MK330 Wireless Keyboard and Mouse Combo for Windows Long Battery Life Black Multimedia Keys Portable Mouse Keyboard & Mouse Combos Computers
UNIFY 6 CHANNELS WIRELESS USB RECEIVER ADAPTER FOR LOGITECH M545 K230 M280 MK330 | eBay