8 x 10/100/1000 PoE ports 2 x Gigabit SFP ports Supports PoE and PoE+ (802.3af and 802.3at) with 130W PoE power budget L2+ Static Routing Advanced L2 switching features include 802.1Q VLAN, QoS, Bandwidth Limiting, Link Aggregation, Port Mirroring, Spanning Tree and IGMP Snooping Advanced security features include Access Control List (ACL), 802.1X / RADIUS, ARP Spoofing Prevention, and D-Link Safeguard Engine Multilingual Web UI, compact CLI, SNMPv1/v2c/v3, and a variety of management features Compatible devices: samsung galaxy s3 Memory storage capacity: 128 MB