Sturdy and Durable: This rack mount adapter is constructed from cold rolled steel,electrostatic powder coat preventing rust and corrosion Compact&Lightweight: Depth adapter kit provides an efficient way to store and organize equipment without consuming excessive space Space Saving: Use this adapter can add additional accessories to the device,10lbs(4.5kg) for 2-post installation, 90lbs(40kg) for 4-post Easy to use:Rack extender is easy to install,with instructions or videos for reference;Complete accessories includes M6 Cross screw×4, M6 washer×4, M6 Cage nut×4 Widely Applicable:EIA/ECA-310 Compliant;1U, 2U Recessed rack adapter with different depth 4”, 6” are available; Suitable for NVR, dell ready rail, switch, router, SFP modules in data/audio/IT rack Tecmojo's rack mount adapter, made of cold rolled steel with electrostatic powder coating for rust and corrosion resistance, offers 10lbs(4.5kg) for 2-post and 90lbs(40kg) for 4-post installations, complying with EIA/ECA-310 standards. It features variable depth via rack ear extenders for personalized equipment installation, a compact and lightweight depth adapter kit for efficient storage, minimal DIY assembly/disassembly requirements, and is available in 1U, 2U recessed rack adapters with different depths suitable for various data/audio/IT rack equipment.