Designed to support most servers fitting this rack rails depth 15-24" in a 19" standard rack or cabinet. Suitable for 4-post rack or 2 center weighted posts rack. Product Size: H 1.87" x W 2.70" x D 15"-24"(380-610 mm), Server holding board: W 1.97" x D 16.5", Depth adjustable from 15 inches to 24 inches, you can accommodate various rack sizes. Durable: Made of high quality cold rolled steel with powder coating, Support up to 110 lbs when installed to a 4-post rack or cabinet at 15 inches Deep. Including 1 Pair of 1U Server Shelf Rails, 8 sets of M6 screws and cage nuts. Easy Installation: Including all the screws for assembly and installation. The 1U universal 4-Post shelf rails are designed to support most Servers in a rack without the need to mount them directly. Besides fitting standard 4-post racks, both depth & width are adjustable and this product also fits 2 center weighted post.

The rails are made from cold rolled steel and finished with black powder coating. They occupy 1.87" high ( a little more space than 1U) in your rack. M6 screws and cage nuts are included for mounting onto rack or cabinet.

The usage spaces:
1. In 19" rack, the usage width of the product is about 17.3".
2. The middle holding pieces without adding the front and back brackets are about 16.5 inches.
When 15" deep 4-post rack, this 1U rack rails can support up to 110 lbs.
When 24" deep 4-post rack, this 1U 19 inch server rack rails can support up to 55 lbs.