What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora
Logitech K400 Plus did not come with a USB dongle? Wait!! It's hidden in the box!! | THINKBOX
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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 - Finter
Replacing Your Wireless Mouse / Keyboard Receiver - ComeauSoftware.com
Updating Logitech Hardware on Linux – Technical Blog of Richard Hughes
Logitech USB Unifying Receiver 910-005235 - Best Buy
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech Wireless Touch Keyboard K400 with Built-In Multi-Touch Touchpad, Black - Walmart.com
New USB Receiver for Logitech Wireless Presenter R400 R700 R800 (C-U0014) 702534996667 | eBay
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech K400 Plus did not come with a USB dongle? Wait!! It's hidden in the box!! | THINKBOX
Logitech K400 Plus Touchpad Wireless Keyboard | Lenovo US
Logitech Wireless Touch Keyboard K400 Plus - Integrated Touchpad, 2.4GHz, USB Wireless Receiver, Up to 33ft., Plug and Play, Black - 920-007119 at TigerDirect.com
Logitech K400 Plus Touchpad Wireless Keyboard | Lenovo US
Genuine Logitech Unifying Mirco Dongle Receiver USB For keyboard K400r K400plus | eBay