Rack-mountable Ethernet Switch. 48 x Gigabit Ethernet Network. 2 Stack – Manageable – Twisted Pair. Optical Fiber – Modular – 3 Layer Supported – 1U High. 19.08 x 13.39 x 1.72 inches. Specifications for this item. CSA-US, FCC, IC, CE, RCM, RoHS.