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Logitech Wireless Keyboard K400 Plus Touch (Dark Grey) Unifying USB receiver 18-months Battery life 13 Function integrated Hot - Krypton Technologies
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Amazon.com: Logitech USB 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
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Logitech K400 Plus TKL Wireless Membrane Keyboard for PC/TV/Laptop/Tablet with Built-in Touchpad Black 920-007119 - Best Buy
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What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora
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