NO ASSEMBLY REQUIRED: this 4U wall mount rack arrives fully assembled with full sets of cage screws and nuts for mounting equipment VERSATILE FUNCTIONALITY: Besides vertically mounting onto wall, this 2U wall mount rack enables your server or networking equipment horizontally under a desk for added versatility. Including almost all screws for assembly onto wood wall, desk or concrete wall. PRODUCT SIZE: 4U; W 19.29" x D 7.56" x H 3.94", compatible with Most 19" Rack Mountable Equipment DURABILITY: this 4U wall mount rack is made of 2.0 mm thick cold rolled steel with powder-coated finishing for ultimate durability. Max Loading Weight Capacity: 44 Pounds EASY INSTALLATION: this 4U wall mount patch panel bracket includes 16 sets of M6 screws and cage nuts, 4 self-propelled wood screws for mounting onto wood surfaces and 1 horizontal bubble. All the hardware for mounting and installation is included.