The Dell ‎770-BBIC 1U Static Rail Kit in Silver is designed for use in rackmount cases and chassis. This kit includes static rails for stabilizing and securing server equipment. With a rack unit height of 1U and dimensions of 28 inches in height, 3 inches in length, and 5.2 inches in width, this kit is compatible with a variety of server cabinets and networking equipment. The silver color adds a sleek and professional look to any server setup. Ideal for enterprise networking and server management.