The Tt e SPORTS CHALLENGER gaming keyboard is the worlds first gaming keyboard with a fan on it. Taking into account gamers need to stay cool & help alleviate issues with sweaty hands, Tt e SPORTS added a fan to the keyboard as well as offering 6 programmable macro keys for gaming. Keep your hands cool. The Challenger keyboard is the first keyboard to have a fan located directly on the keyboard; allowing users to adjust both its direction & location for optimal cooling. Accessible Media Keys. With a function key, you can adjust your music tracks & volume via the F1-F7 keys. Built-in USB (Universal Serial Bus) port. For those hard to reach mouse cables, you can utilize the USB (Universal Serial Bus) 2.0 port included with the Challenger keyboard. Customizable MACRO keys & onboard memory Users can program any 6 keys on the keyboard to become macro keys. Across 3 different savable profiles, this offers up to a total of 18 programmable macro keys. Color black Graphical UI Yes Gold-Platted USB (Universal Serial Bus) Yes Interface USB (Universal Serial Bus) Membrane, Mechanical, Plunger Membrane On-Board Fan Device Yes Anti-Ghosting Keys 20 On-Board Memory Size 32kb No. of Game Profile 3 No. of Macro Key 6 x 3 Polling Rate 500 Hz Back-Light No Wrist Rest Yes, undetachable On-Board Audio Jacks No Smart Cable Management Yes USB (Universal Serial Bus) Cable Detachable No Multimedia Keys 7 On-Board USB (Universal Serial Bus) Port 2 Keystroke Lifecycle 10 million Cable Length 2m braided Dimension (Lx Wx H) 480 x 205 x 25mm