Das Keyboard 4 Professional mechanical keyboard is made of the highest-quality materials and robust construction you can feel.All of our keyboards are designed with high-performance,gold-plated mechanical key switches lasting up to 50 million keystrokes.When Germans design it,you know it has to be good.The Features of Daskeyboard 4 Professional Mechanical Keyboard at a Glance:Cherry MX mechanical key switches with gold contactsDedicated media control with oversized volume knobInstant sleep button to save energyLaser-etched key cap inscriptions to prevent fadingFoot bar to raise keyboard also functions as a ruler(youll thank us later!)Extra long 6.5 ft(201 cm)USB cable with single USB type-A connectorNKRO over USB for faster gaming,programming,or anything that makes you a formidable opponent in work or playAnodized aluminium top panelDont Just Take It From UsUsed by Professional Gaming Organisation Reason Gaming who had this to say about it:\"Das Keyboard produce top quality products which are pinnacle to our players\' success. The N-key roll over features on the mechanical switches allow our players to cast spells and peak corners with confidence that the actions will complete. The Build quality is fantastic which means we can travel to events all round the world without the fear of them breaking in transit.\"Daskeyboard 4 Professional Mechanical Keyboard Specifications:SwitchesCherry MX mechanical key switchesMedia KeysYes,dedicated volume knobInterface(s)Two-port USB 3.0 SuperSpeed hubUp to 5Gb/s,10x the speed of USB 2.02 USB ports or 1 USB port+1 PS/2 port,USB to PS/2 adapter(included)*Media controls are not available using a PS2 connectionEnergy SavingInstant sleep buttonKeycapsLaser-etched key cap inscriptions to prevent fadingBumps on F and J keys(home keys)Layout105-key UKExtrasFoot bar to raise keyboardAlso functions as a rulerCable6.5 ft(201 cm)USB cableUSB type-A connectorDimensions18x 6.8x.8045.72cm x 17.272cm x 2.032cmWeight2.9 lbs1.3 kgChassisAnodized aluminium top panelFirmwareFirmware updatableSystem Requirements PC or Mac,Windows,Linux,or Mac OS X