Linksys WAG320N Dual-Band Wireless-N ADSL2+ Modem Gigabit Router. Modulation: 16-QAM, 64-QAM, QPSK, Bandwidth: 2.4 GHz. DSL connection type: ADSL. Networking standards: 802.11b, 802.11g, 802.3u. Certification: FCC, CE, IC-03, Wi-fi, A-Tick, Telepermit. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 10 - 85 %