This is the Redragon K587-PRO RGB TKL Mechanical Gaming Keyboard, which has nine onboard macro keys, a detachable wrist rest, and black optical blue switches. Extremely quick optical switches You can have the most enjoyable typing experience with OUTEMU optical-mechanical blue switches. With a 0.2 ms response time, each input will be recorded and activated instantly, ten times quicker than with the original mechanical switches.