D-Link DGS-1210-52MP 52-Port Gigabit Smart+ PoE Switch, 48x GbE PoE+, 4x RJ45/SFP, PoE 370W

52-Port PoE Gigabit Smart Switch 370W PoE - Power budget 370W - 48 x PoE 10/100/1000Mbps - 4 x Combo 10/100/1000Mbps TP/100/1000Mbps SFP Port - Port 1-8 802.3at up to 30W - Port 9-48 802.3af up to 15.4W - Switching Capacity 104 Gbps - Advance power saving features - Half-/Full-Duplex, auto-negotiation, Auto MDI/MDIX - IEEE 802.3x Flow Control - 802.3ad Link Aggregation - 802.1D/802.1w/802.1s Multiple Spanning Tree - Asymmetric VLAN, Auto Voice VLAN - Jumbo frame 9,216 Bytes - 802.1p priority queues - MAC Address table size 16k - Static MAC Addresses 256 - Static multicast addresses 64 - MAC/IP filtering - MAC/IP-based ACL 200 rules (Port List) - 802.1X port-base Access Control, Port Security - LLDP, LLDP-MED, Smart Binding, Traffic Segmentation - IPv6 configurations - Static Routing and Default Route - D-Link Safequare Engine - Smart Console Utility, web based management, compact CLI - Dual Image - D-View 6.0 support - 19" Rackmount Installation - IEEE 802.3az EEE - Firmware Release 6 not backward compatible tp Hardware Version C1.