Netgear Router 54Mbps Wless ADSL firewall. Modulation: 16QAM, 64QAM, CCK, DBPSK, DQPSK, OFDM with BPSK, QPSK. Modem speed: 2 Kbit/s. Routing protocols: DNS, L2TP, PPPoA, PPPoE, RIP, UDP. Firewall security: Stateful Packet Inspection, Intrusion logging and Reporting, Denial of Service protection, Security algorithms supported: PPTP. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 0 - 90 %