.   . Ergonomic design. increases comfort for extended use. Built to last with a sturdy and robust design. Classic black Dell design. Quiet Keys . for extra comfort and productivity. Compatible. with Windows and MacOS simply plug in the USB no installation required. 1 Year Warranty . The Dell KB212-B USB QuietKey keyboard has an ergonomic design for extra comfort and productivity with extended use. The build quality is very sturdy and robust meaning this device has been built to last longer. The classic Dell design is timeless and will fit into any office or home setup while also being compatible with all systems using wired USB connectivity.This device has been tested and validated on Dell systems. Dell Technical Support will support this device when used with Dell systems so if you have any problems you can get technical advice from the manufacturer. This keyboard is a full-sized UK keyboard with number-pad and the correct UK layout..