D-LINK DGS-1210-52E 48-PORT GIGABIT LAN SMART MANAGED SWITCH WITH 48X 10/100/1000BASE-T + 4X SFP PORTS, 104GBPS SWITCHING CAPACITY & FULLY IPV6 COMPATIBLE

Features:
-4x SFP Ports
-104Gbps switching capacity
-48x 10/100/1000BASE-T Ports
-VLAN Trunking and Auto Surveillance VLAN
-Loopback Detection automatically disables a port when a loop is detetced

Specifications:
-Interfaces: 48x 10/100/1000Mbps ports, 4x SFP ports
-Port Standards: IEEE 802.3 10BASE-T Ethernet(twisted-pair copper)/ IEEE 802.3u 100BASE-TX Fast Ethernet(twisted-pair copper)/ IEEE 802.3ab 1000BASE-T Gigabit Ethernet(twisted-pair copper)/ IEEE 802.3az Compliance/ Auto-negotiation/ IEEE 802.3x Flow Control
-Network Cables: UPT CAT5/5e(100m max.)
-Duplex Mode: Full/half-duplex for 10/100Mbps / Full-duplex for 1000Mbps
-Media Interface Exchange: Audto MDI/MDIX adjustment for all twisted-pair ports
-Switching capacity: 104Gbps
-Transmissiom Method: Store-and-forward
-MAC address Table: 16,000 entries per device
-Packet Buffer Memory: 3.0MB
-CPU Memory: 128MB DDR3
-Flash Memory: 16MB
-AC Input: 100 to 240VAC 50/60 Hz internal universal power supply
-Maximum Power Consumption: 38.27W
-Standby Power Consumption: 100V-29.44W / 240V-29.49W
-Acoustic: Low speed-39.8dBA / High speed-49.2dBA
-Heat Dissipation: 130.58BTU/h
-MTBF: 481.624 hours