Cisco SLM248GT (SF200-48)

48-port 10/100 + 2-Port Gigabit Switch – SLM248GT (SF200-48)
48 10/100; 2 Combo mini-GBIC ports. 
Performance: Switching capacity 13.6 Gbps. 
Layer 2: Port grouping up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation, Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs), Head-of-line (HOL) blocking HOL blocking prevention. 
Internet Group Management Protocol(IGMP) versions 1 and 2 snooping: IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups. 
QoS: Priority levels 4 : hardware queues, Scheduling: Priority queuing and weighted round-robin (WRR), Queue assignment based on DSCP and class of service (802.1p/CoS).