ER7206 , Ethernet WAN Yes , SFP WAN Yes , 4xEthernet LAN (RJ-45) ports , DHCP server Yes , Security algorithms 3DES/128-bit AES/192-bit AES/256-bit AES/DES/MD5/SHA-1/IPSec/SNMP/SNMPv3/SNMPv2 , Internal memory 512 MB , Colour Black , AC input voltage 100 - 240 V , Operating temperature (T-T) 0 - 40 °C