ZyXEL Prestige 2602HWL Compact ADSL2+ VoIP IAD. Routing protocols: ARP, ICMP, UDP. Data transfer rate: 0.1 Gbit/s, Networking features: SUA/Multi-NAT, DHCP Server/Relay/Client, DNS Proxy, Dynamic DNS, UPnP. Dimensions (WxDxH): 248 x 168 x 37 mm, Weight: 0.642 kg. Power requirements: 18V DC 1A. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 20 - 85 %