The Netvanta 1224st 24 Port Layer 2 Ethernet Switch with dual Gigabit uplinks. Includes 24 - 10/100Base-T access ports and 2 - Gigabit uplinks. 1200504E1 Gigabit uplinks can utilized either the built in 1000Base-T interface or SFP slot, allowing the use of optional 1000Base-SX or 1000Base-LX SFP modules. Features for the Netvanta 1224st 1200504E1 include 802.1Q VLAN support, 802.1p QoS, Port Mirroring, Broadcast Storm Control, 802.1D Spanning Tree, 802.1w Rapid Spanning Tree, 802.3ad Link Aggregation, Auto MDI/MDI-X, Command Line Interface, Telnet, SSH, RADIUS. 19" Rackmount 1U housing. Supported SFP modules include 1000Base-SX (1200480L1) and 1000Base-LX (120081L1).