Middle Atlantic MK-19-45 is EIA-compliant 19" cable management rack. Overall dimensions of MK-19-45 are 84.28" H x 23.96" W, depth at base is 16.44", depth of rail channels is 6.44", and depth at top including integrated cable trough is 12.44". Useable height is 45 rackspaces. Weight capacity is 500 lbs., evenly distributed with the base securely fastened, and 800 lbs., evenly distributed with the base of the rack securely fastened and the top of the rack braced to a structural building component. MK-19-45 comes equipped with multi-position cable management rings in twenty places, twelve 7" obround cable pass-through openings on front, eight 7" obround cable pass-through openings on each side, and integrated cable trough at top of rack. Multiple raised cable lacing points for cable management are provided.