Low-Profile 19" Wall Mount Cabinet with 4U Horizontal and 2U Vertical Rails Slim, Space-saving Enclosure with Only 170 mm (6.7 in.) Depth, Ideal for AV, Multimedia and Surveillance Applications, Assembled, Black RAL 7021 SKU: 713689 Highlights Slim, space-saving design for organized, secure housing of network, multimedia, surveillance, audio/video and smart home equipment Horizontal 4U 19" rackmount option for PDUs, patch panels and other equipment with a depth up to 170 mm (6.7 in.) Vertical 2U 19" rackmount option for network switches and other equipment with a depth up to 280 mm (11 in.).