The EIA/TIA/RoHS compliant, gangable rack shall be Lowell Model No. LGR-4036. Overall measurements shall be 76.125"H x 36"D x 23.06"W with panel space of 40 rack units. Load capacity shall be 3150 lbs. The rack shall include a recessed rear door with vents and key lock; top with 10U opening and compound knockouts; open base with grounding stud; two pairs adjustable mounting rails with printed RU increments; knockout panels with combination knockouts above/below rear door; blank project panel below rear door; and provisions to mount an optional surface-mount front door (ordered separately). The rack shall be manufactured in the U.S.A. with certified U.S. steel and have a black wrinkle powder epoxy finish. It shall be listed to UL 2416.