Das Keyboard 4 Professional Soft Tactile MX Brown Mechanical Keyboard (DASK4MKPROSIL) Cherry MX mechanical key switches with gold contact,Dedicated media control with oversized volume knob, Two-port USB 3.0 SuperSpeed hub - Up to 5Gb/s, 10x the speed of USB 2.0,Instant sleep button to save energy,Laser etched key inscriptions, Bumps on F and J keys (home keys) NKRO over USB for faster gaming, programming, or anything that makes you a formidable opponent in work or play,Anodized aluminium top panel,Firmware updatable System requirements: PC Windows, Linux, ChromeOS or Mac,One USB 1.1., 2.0 or 3.0 port, No driver required Elevated height: 1.2 inches (3.1 cm)