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 Cliky USB Mechanical Keyboard at a Glance:Blue Cherry MX mechanical key switches with gold contactsDedicated media control with oversized volume knob2-Port USB 3.0 SuperSpeed hub with up to 5Gb/s,10x the speed of USB 2.0Instant sleep button to save energyLaser-etched key cap inscriptions to prevent fading105-key UK layout with bumps on F and J keys(home keys)Footbar to raise keyboard also functions as a ruler-you\'ll 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 panelFirmware updatableProfessional OpinionUsed 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 Cliky USB Mechanical Keyboard Specifications:Switch TypeRed Cherry MX SwitchesGold contactsKeycapsLaser-etchedMedia ControlVolume knobUSB2 USB 3.0 ports or 1 USB port+1 PS/2 portUSB to PS/2 adapter(included)*Media controls are not available using a PS2 connectionLayout105 key UK layoutComfortFoot bar to raise keyboardCable6.5 ft(201 cm)USB cable with single USB type-A connectorDimensions18x 6.8x.80457.2mm x 172.72mm x 20.32mmWeight2.9 lbs1.3 kgFrameAnodized aluminium top panelFirmwareUpdatableOperating SystemWindows,Linux,or Mac OS XExtrasInstant sleep buttonFoot bar which doubles as a ruler