TechPowerUp published a review on the Endgame Gear XM2w 4K
Endgame Gear XM2w 4K Review
At 61 g, the ambidextrous XM2w 4K weighs the same as the budget XM2we, but updates the internals across the board: PixArt's PAW3395 sensor is used, true 4000 Hz wireless polling is supported, and Kailh GX switches are utilized for the main buttons, allowing for exceptionally low click latency.
