Amazon.com: Logitech USB Unifying Receiver - 2 Pack For Personal Computer : Electronics
Amazon.com: Logitech Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
Logitech 920-002912, Logitech Solar Wireless Keyboard, LOG920002912, LOG 920-002912 - Office Supply Hut
Amazon.com: Logitech USB Unifying Receiver - 2 Pack For Personal Computer : Electronics
List of Logitech products - Wikipedia
Logitech MK360 Full-size Wireless Scissor Keyboard and Mouse Black 920-003376 - Best Buy
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Logitech Nano Wireless Receiver For Logitech Keyboard and Mouse - Newest Revision (DUAL DEVICE / NON-UNIFYING) - HDEtron.com
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Logitech MK270 Wireless Combo - keyboard and mouse set - English - 920-004536 - Keyboard & Mouse Bundles - CDW.com