FITS ANY 4POST RACK: Compatible with square round and threaded rack holes for versatile installation ADJUSTABLE MOUNTING DEPTH: Supports depths from 10 to 31.5 (254800 mm) to fit various server configurations INCLUDES CABLING CROSSBAR: Optional wirebar simplifies cable management for a clean and organized setup 1U RACKMOUNT SOLUTION: Designed to rackmount 19 wide equipment securely with a 45 lb (20 kg) capacity OEM RAIL REPLACEMENT: Suitable for Dell HP IBM and Apple servers as an alternative to OEM slide rails