Ports: 48x 10/100/1000BASE-T (RJ45) + 4x 1000BASE-X SFP (or 2x 10GE on 10GE model)
Switching Capacity: 96 Gbps (4948) / 136 Gbps (4948-10GE)
Forwarding Rate: 72 mpps (4948) / 102 mpps (4948-10GE)
Form Factor: 1U, Rack-Mountable
Power: 1+1 Redundant, Hot-Swappable AC/DC PSUs
Memory (4948-10GE): 256 MB SDRAM, 266 MHz CPU
Layer: Layer 2/3 (Multilayer)
VLANs: 4096 Active VLANs
MAC Addresses: 32,000 (4948) / 55,000 (4948-10GE)
QoS/Security: 32,000 hardware entries
Software: Cisco IOS (IP Base/Enterprise Services)