While the external shape remains identical to the famous XM Claw Grip shape, the internal structure has been optimised down to the smallest detail to achieve a low overall weight of around 62g, while maintaining a robust housing construction with no holes. Designed by eSports veterans for competitive use, the XM2w 4k incorporates premium components including PixArts PAW3395 sensor, Nordic nRF52840 wireless MCU and Endgame Gear's exclusive Kailh GX SPDT switches with GX Mode compatibility. To achieve the best possible performance, the XM2w 4k is powered by a Nordic nRF52840 Wireless MCU. The 4k dongle utilises a Nordic nRF52820 MCU to ensure stable and reliable wireless data transmissions. In addition, a Nuvoton M483 MCU is used for the high-speed USB connection, which enables wireless sampling rates of up to 4,000 Hz and thus offers incredibly low sensor and click latency. The 4k dongle is included with the mouse for optimal performance right out of the box. The XM2w 4k sets new standards for wireless performance and offers an average click latency of less than 310 microseconds. With a constant polling rate of 4000 Hz for the clicks, you enjoy extremely low click latency at all available sensor polling rates. By activating the GX Speed Mode, click latency is reduced by a further 1.4 ms, setting a new standard and making it by far the fastest wireless mouse in the world. This exceptional reaction speed guarantees the immediate registration of every click, which helps you in decisive moments and ensures victory in game-deciding duels.