UNIVERSAL COMPATIBILITY: 19" EIA/ECA-310 compliant 1U 10" deep server rack cabinet shelf for universal fit in any existing server/AV rack or cabinet; Includes M6 Cage nuts & screws for mounting DURABLE DESIGN: Heavy-duty cantilever shelf tray that is easy to install, constructed of durable 16 gauge SPCC commercial cold-rolled steel with support for weight up to 44 lbs (20kg) STRUCTURAL INTEGRITY: Constructed with downward facing front and rear lips that uses up minimal height space preserving vertical shelf space for your equipment; Downward lips will not interfere when placing or taking equipment on or off the shelf INSTALLS IN ANY RACK BRAND: The shelf is fully compatible with our full array of server / network cabinets and enclosures, and other brands like: HP, APC, Dell & Lenovo THE IT PRO'S CHOICE: Designed and built for IT Professionals, this 1U server rack shelf is backed for life, including free lifetime 24/5 multi-lingual technical assistance