The SteelSeries QcK Prism 3XL is an extended RGB gaming mousepad measuring 1220 × 590 × 4 mm, providing space for a keyboard, mouse and other desktop peripherals.

Its micro-woven cloth surface supports low- and high-DPI mouse tracking, while the non-slip rubber base helps keep the mousepad in position. Two-zone RGB edge lighting can be customised through compatible SteelSeries software, including supported lighting effects and in-game notifications.