The D-Link DES-1050G 48-Ports Rack-Mountable Switch has the following features: • Has 48 10/100 Mbps Copper Ethernet Ports. • Also has Two (2) Copper/SFP Gigabit ports. • Provides a 13.6 Gbps Switch Capacity. • Auto MDI/MDIX for Each Port. • Full/Half-Duplex Support for Each Port. • 802.3x Flow Control Per Port for Data Loss. • Secure Store-and-Forward Switching Scheme Per-port. • Auto-correction of reverse twisted-pair polarity. • Standard 19-inch rack-mount size. • Plug and play ports.