4 Gigabit SC and 6 10/100 Base-TX 
DPRing (recovery time < 5ms @ 250 switches), RSTP/ STP, and MSTP for network redundancy
52 Gbps Non-Blocking, switch backplane 16K MAC address table
Supports console CLI , Web, SNMP V1/V2c/V3, RMON, HTTPS, SSH for remote management
Dual 100-240VAC power inputs
IP41 rugged aluminum case
-40-85℃operating temperature