TP-LINK ADSL2+ Ethernet/USB Modem Router. Interface: USB 2.0/Ethernet Port. Upstream data rate: 3.5 Mbit/s, Downstream data rate: 24 Mbit/s. Compliance industry standards: IEEE 802.3, 802.3u. Networking features: Fast Ethernet. Operating temperature range (T-T): 0 - 55 °C, Operating relative humidity range: 10 - 95 %, Storage temperature range (T-T): -40 - 70 °C