Razercfg is a Razer device configuration tool. It is based on "razerd", a background daemon doing all of the low-level privileged hardware accesses. The user interface tools are "razercfg", a command-line tool, and "qrazercfg", a Qt-based graphical device configuration tool. Supported devices are the Razer DeathAdder (Classic, 3500DPI, and Black Edition) mouse, the Razer Krait mouse, the Razer Lachesis mouse, the Razer Copperhead mouse, the Razer Naga mouse, the Razer Boomslang CE mouse and the Razer Taipan mouse.