Introducing
XA25
The lightest full-size gaming mouse.
25 grams. Latency at the theoretical limit.
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25 g Weight
117 mm Length
< 3 μs Latency overhead
8000 Hz Polling Rate
PAW3950 Sensor
Introducing
The lightest full-size gaming mouse.
25 grams. Latency at the theoretical limit.
Thanks, you're on the list.
Shell & Form
Traditional lightweight mice achieve low weight by cutting out holes, compromising rigidity and feel. The XA25 uses MJF additive manufacturing to print a dense internal orthogrid structure that cannot be replicated by injection molding. The result: full solid surfaces, a slightly textured matte black finish, and an unbelievably light yet stiff build.
Performance
Custom in-house firmware achieves less than 3 μs overhead above the theoretical minimum for the given hardware at 8000 Hz polling.
PixArt's flagship sensor, running at 20000 fps. Firmware ensures SPI reads are synchronized to USB microframes with sub-microsecond jitter, guaranteeing smooth tracking.
1.9 mm diameter, smooth non-braided outer jacket. Fully shielded and compliant with USB 2.0 signal integrity (eye diagram) tests at 480 Mbps. Flexible enough to be nearly unnoticeable in use.
Nuvoton M483 microcontroller with a 192 MHz Cortex-M4 core. Kailh Sword GM X switches rated 100 million clicks for left and right buttons. TTC Gold Dustproof scroll wheel encoder.
A minimal WebHID-based control panel runs directly in your browser. No drivers, no software installation. Configure dpi, report rate, lift-off distance, and more without bloat. Try it out here.
PCB and cable sub-assemblies are manufactured in China. Final assembly and quality control are performed in the United States by our own hands. Every unit inspected and tested before it ships.
About
qsxcv has spent over a decade modding, reverse-engineering, and writing custom firmware for gaming mice. All technical engineering on the XA25 is done entirely in-house: firmware, PCB design, and shell design.
We don't outsource our core work or rebrand someone else's mouse. Every microsecond of latency we've shaved, every gram we've removed, every decision in the XA25 is ours.
Read the process →Full Specifications
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