Logitech USB Unifying Receiver

Features:

• One Receiver – 6 Devices: Connect up to 6 compatible keyboards and mice to one computer with a single Unifying receiver – and forget the hassle of multiple USB receivers.
• Tiny, Leave-In Receiver: Our smallest Unifying receiver. So tiny that you can leave it in your notebook, so there's no need to unplug it when you move around.
• Lost Your Unifying Receiver?: Use this stand-alone USB Unifying receiver to replace a lost one. It's compatible with all Logitech Unifying products (look for Unifying logo displayed on compatible products)

Specifications: