Available in 3U, 4U, 5U, 7U and 9U,Engineered to provide secure transport for rack mountable electronics,Equipment payload weight ranges for 3U - 5U = 80-100 lbs. (36-45 kg) per case,Black case with Anti-Reflective zinc cobalt black (HCB) catch and strike hardware,2 Lockabel Cable Catches per lid to provide security for your equipment,Black stainless steel handles,Lid hangers for lid storage while in use,Molded stacking ribs and coupling catches to secure cases when stacked,19" (48 cm) wide, 33" (83 cm) deep fixed square hole frame for universal equipment fit,Sealed gasket and PRV keeps container watertight and eliminates over pressurization,4 removable 3.5" (8.9 cm) heavy duty bottom casters,Choice of SAE 10-32 or Metric M6 clip nuts,REACH and RoHs compliant,Dimensions: Exterior (L x W x D) 45.80" x 27.00" x 14.60" (116.3 x 68.6 x 37.1)