Logitech K400 Plus Keyboard Not Working Troubleshooting Guide - YouTube
User manual Logitech K400 (English - 2 pages)
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About K400 Plus
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Logitech K400 vs K400r | AFTVnews
Logitech K400 Plus Touchpad Keyboard for TV connected PC
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About K400 Plus
Logitech Wireless Touch Keyboard K400r Review | PCMag
Logitech K400 (920-003070) Wireless Keyboard for sale online | eBay
Logitech K400 Plus Touchpad Keyboard for TV connected PC
Logitech Wireless Touch Keyboard K400r Review | PCMag
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Amazon.com: Logitech Wireless Touch Keyboard K400 with Built-In Multi-Touch Touchpad : Everything Else
Logitech K400 Plus Wireless Touch Keyboard | Dell USA
Logitech K400 Plus TKL Wireless Membrane Keyboard for PC/TV/Laptop/Tablet with Built-in Touchpad Black 920-007119 - Best Buy
Logitech Wireless Touch Keyboard K400r Review - PinoyTechBlog - Philippines Tech News and Reviews
