1U universal rackmount rail kit provide support rack mounted equipment such as servers, switches, UPS systems, and other rack mounted equipment Universal rack rails serve as an alternative to mounting ears or OEM server rails and are compatible with all major rack servers such as Dell PowerEdge, HPE, Lenovo, IBM, and Supermicro Constructed from durable, zinc plated 18-Gauge cold-rolled steel to support rack mounted equipment weighing up to 45 lbs (20 kgs) Compatible with standard 19-inch 4-Post racks and cabinets using 10-32, 12-24, and standard universal square mounting holes Adjustable mounting depth between 10 and 31.75 inches (254 - 806 mm)