IE8/IE9/IE10 is no longer a supported browser. Please use a more current browser to view our site.


Optical Gaming Mouse

Who says you can’t improve on perfection?

HK$ 399




Delta Zero sensor technology

Accuracy is everything

Building on the powerful legacy of MX518 and G400, G400s features exclusive Delta Zero sensor optimizations for high-accuracy cursor control. Whether flying across the screen or honing in on one pixel, the 4000 DPI sensor responds accurately to your hand movements. The LED-illuminated sensor is designed to go beyond simple eye/hand coordination, diminishing the thinking required to move your character, adjust your scope for sniping, select RTS units, or direct MOBA skill shots.

Advanced surface materials

A difference you can feel

We used infrared imaging to determine strategic tactile zones where your hand touches the mouse surface. We applied specialized materials to each zone for improved comfort, control and durability. The hydrophobic coating on the palm area helps prevent your hand from sticking. For heavy contact zones, we added fingerprint-resistant coatings on the primary buttons. And, soft grips on the sides maintain comfort through long hours of use.

Ultra-durable build

Goes the distance, and then some

Gaming conditions torture typical mice. G400s is designed to endure. Upgraded primary mechanical microswitches are rated to a 20 million click lifespan. Low-friction polytetrafluoroethylene feet are tested to last an amazing 250 km. Whatever you can dish out, G400s will stand up to it.

In-game sensitivity switching

Be ready in an instant

Make the right moves in any game situation. Shift through multiple DPI settings for quickly selecting on-screen options or scanning the game map (up to 4000 DPI) or downshifting to make pixel-precise sniper targeting or unit selection (200 DPI) using dedicated buttons conveniently located above and below the scroll wheel.

8 programmable buttons

At your command

Achieve great results with the default configuration straight out of the box. Or, set up one-button triggers for actions that typically require digging into menus. Put push-to-talk communications in easier reach. Temporarily down-shift DPI. Reassign any game command or multi-command macro to any one of eight programmable buttons with optional Logitech Gaming Software (LGS).

Sculpted comfort grip

Comfort is king

Maintaining the classic MX518 shape, G400s offers a naturally contoured grip designed for maximum comfort through long gaming sessions. In the end, you’ll always be the last gamer standing.

1-millisecond report rate

Thought and action unite

Be confident that your every command is executed as fast as possible. Up to eight times faster than a standard USB mouse, G400s captures your moves as fast as you can make them.

Slick feet

A material advantage

Low-friction polytetrafluoroethylene feet reduce drag for faster motions, smoother cursor movements, and improved accuracy.

Easy-to-use setup software

Make it yours—simply

Use the optional Logitech Gaming Software to perfectly match its commands to your favorite games. Simple drag-and-drop settings allow you to customize button and tracking profiles for any game you play. Or, use pre-configured customizations with automatic game detection.


Part Number
Warranty Information
3-year Limited hardware warranty
System Requirements
Windows® 8, Windows® 7, or Windows® Vista
USB port
Internet connection for optional software download*
Package Contents
User documentation
Buttons (Left / Right / Third): 20 million clicks
Feet: 250 km (155.3 mi)

Resolution: 200 - 4000 dots per inch (dpi)
Image processing: 5.8 megapixels/second
Max. acceleration**: 25G
Max. speed: up to 4.06 m (70-140 in)/second*
USB report rate: Up to 1000 reports/second
Sleep mode: disabled
Dynamic coefficient of friction***: .09 µ (k)
Static coefficient of friction***: .14 µ (s)
Total weight: 133 g (4.7 oz)
Cord: 15 g (0.53 oz)
  • *Some profile settings require Logitech® Gaming Software to be enabled and are not supported on Linux® and earlier Windows®-based operating systems. Logitech® Gaming Software is available at
    **Tested on popular gaming mousepad surfaces.
    ***Tested on wood-veneer desktop.