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Logitech K400r Wireless Touch Keyboard

Product with built-in touchpad, functions as mouse with Left- and Right-click button and gesture support (see gesture support section).

Logitech K400r wireless touch keyboard

The best of my knowledge the Logitech K400 was released in 2013 and K400r was released in 2014.


This article serves as a personal archive and therefore should not be treated as an official source.

Package Contents

  • Batteries
  • Keyboard with touchpad
  • Unifying receiver
  • USB extender/cable
  • User documentation

Product Dimensions

Product component Width Depth/Length Height Weight
Keyboard 354 mm (13.94 inch) 136 mm (5.35 inch) 24 mm (0.94 inch) 360g (12.7 ounce)
Receiver 14 mm (0.55 inch) 19 mm (0.75 inch) 6 mm (0.24 inch) 2 g (0.07 ounce)

Frequently Asked Questions

  1. Differences between the Wireless Touch Keyboard K400 and K400r
    • K400 Windows key uses logo from Windows 7
    • K400r Windows key uses logo from Windows 8
    • K400 hot keys are not programmable
    • K400r hot keys are programmable
    • K400r F keys have multi function capability
    • K400 has the following touch pad gesture support
      • Left Click (Tap-to-Click)
      • Double-tap-and-drag
      • Vertical Scroll
    • K400r has the following touch pad gesture support
      • Left Click (Tap-to-Click)
      • Double-tap-and-drag
      • Right Click
      • Vertical Scroll
      • Horizontal Scroll
      • Zoom
      • Windows 8 Edge gesture
  2. Storing the Unifying receiver in the K400r keyboard

    The K400r has a space for storing the Unifying receiver when not in use. To locate the storage space for the Unifying receiver in your keyboard:

    1. Flip your keyboard over and slide the battery cover off.
    2. Locate the small rectangular slot on the underside of the battery cover.
    3. Slide the receiver into the slot. It will fit facing either way.
    4. Replace the battery cover.

Gesture Support (Windows)

Item Name Description
One Finger Pointer movement
Two Fingers Swipe up/down (vertical scrolling)
Swipe left/right (horizontal scrolling)
Tap with two fingers (Right Click)
Spread/Pinch (Zoom ±)
Other: Windows 8 Edge Left Edge (switch applications)
Right Edge (Show Charm bar)
Top Edge (Show Application bar)

Keyboard Specifications

Item Name Description
Battery Details Removable, replaceable
Size: AA
Quantity: 2
Type: Alkaline
Battery Life Up to 12 months
Connect / Power On/Off switch
Connection Type Wireless
Indicator Lights (LED) None
LCD Display None
OS Support (at release) Windows XP, Windows Vista, Windows 7, Windows 8, Windows RT (ARM)
Software Support (at release) SetPoint verson 6.50 (keyboard programmable)
Connection Utility: Unifying
Special Keys FN key, Caps Lock, Scroll Lock
Wireless Protocol 2.4 GHz (Unifying)
Wireless Range Up to 33 Feet or 10 Meters

Receiver Specifications

Item Name Description
Connection Type USB
USB Protocol USB 2.0
USB Speed Full-speed
Receiver Size Nano
Connect Button No
Indicator Lights (LED) None