Add flexibility to your rack by expanding or reducing the equipment mounting depth by 4 inches Work with server racks and cabinents and rack-mountable equipment Rail depth adapter / Rack extender / Rack extender brackets / Server rack depth extender / Server rack depth adapter / 1U rack depth brackets Increase or decrease the mounting depth of one rack unit (1U) in your server rack by 4 in. Save cost by installing equipment with different mounting depths in the same rack TAA compliant