Dell Alienware AW568 113-Keys Black USB Wired Advanced Gaming Keyboard NMCRP 0NMCRP CN-0NMCRP. Game for hours in comfort with durable mechanical switches that boast 50 million keystroke life cycles. Plus, your keyboard comes with adjustable audio controls, three adjustable feet angles and an optional palm rest that attaches magnetically.Dell Part Number: NMCRP 0NMCRP CN-0NMCRPAlienware Model Number: AW568Features:- Iconic Alienware design with AlienFX 16.8M RGB ambient lighting- Brown-mechanical keys- Tested for durability to a 50 million cycle life- 45g actuation force- 60g tactile force- 2mm actuation distance- 4mm total travel distance- Less than 5ms bounce time (during actuation speed of 0.4 m/s)- 1000 Hz (1ms) polling rate- Anti-Ghosting and N-key rollover on all keys- All programmable keys- Optional palm rest (sold separately)Specifications:General- Connection type: USB- Supported operating systems: * Microsoft Windows 8 * Microsoft Windows 10Electrical- Operating voltage: 5V- Operating power current: Maximum up to 300mAPhysical Characteristics- Height: 33.5 mm ( 0.5mm); 53.5mm with feet- Length: 450 mm ( 0.5mm)- Width: 172 mm ( 0.5mm)- Weight: 1400g ( 10g)Environmental- Operating temperature: 0°C to 40°C- Storage temperature: -40°C to 65°C- Operating humidity: 90% maximum relative humidity, non condensing- Storage humidity: 90% maximum relative humidity, non condensing