BenQ U2-DW-R gaming mouse 3950 sensor 4000 Hz polling 7 buttons 24-step scroll 2.4 GHz wireless refurbished

Esports mouse with 3950 sensor

The BenQ U2-DW-R is a refurbished gaming mouse built around a 3950 optical sensor that supports up to 3200 dpi. Its symmetrical shape is designed for claw-grip users who favour multi-angle movement and quick lift-off adjustments. The inward-curved sides reduce thumb angle for faster index-finger clicks and balance force across the hand. Seven programmable buttons and a 24-step scroll wheel complete the control layout.

Wireless link limited to 2.4 GHz RF

Connectivity relies on a 2.4 GHz RF wireless connection paired with an enhanced receiver that reduces signal interference. The link is compatible with USB 2.0 and USB 3.0 ports for plug-and-play operation. Polling rate reaches up to 4000 Hz, but the interface remains bound to the 2.4 GHz band with no wired or Bluetooth alternatives. Buyers who need a wired fallback or a different wireless protocol will not find it here.

Upgrade from lower-polling wireless mice

This model replaces older wireless mice that operate at standard polling rates and lack the enhanced receiver. The jump is worth it when competitive play demands 4000 Hz reporting and interference-resistant 2.4 GHz stability. The claw-focused geometry and side-button placement also address comfort gaps found in ambidextrous shapes without right-side curves. Users who prefer palm grip or require more than seven buttons should look elsewhere.