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Logitech Wireless Touch Keyboard K400 Plus review: Logitech's $40 K400 Plus spruces up the couch-potato experience - CNET
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Amazon.com: Logitech Wireless Touch Keyboard K400 Plus Keyboard with 3.5-inch Multi-touch Touchpad, Quiet Keys, Wireless Keyboard up to 33 ft. Plug-and-Play (Renewed) : Electronics
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Amazon.com: Logitech K400 Plus Keyboard - Wireless Connectivity - RF - Black - USB Interface - Italian : Electronics
Logitech Wireless Touch Keyboard K400 Plus - keyboard - with touchpad - QWERTY - US International - black - 920-007119 - Keyboards - CDW.com
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