ER605 , Ethernet WAN Yes , 150000xConcurrent connections , 5xEthernet LAN (RJ-45) ports , DHCP client Yes , DHCP server Yes , Security algorithms 3DES/128-bit AES/192-bit AES/256-bit AES/DES/MD5/SHA-1 , 20xVPN tunnels quantity , Internal memory 256 MB , Colour Black , Power consumption (typical) 7.94 W , AC input voltage 120 - 240 V , Operating temperature (T-T) 0 - 40 °C