Cisco ATA187-I1-A= ATA 187 Analog Telephone Adaptor Type: Accessories Ports: 2 RJ-11 1 RJ-45 10/100BASE-T Fast Ethernet port Power: Power supply: Universal AC power supply 100 and 240V Power adaptor output voltage: +12.0 VDC at 1A maximum Dimensions: 1.5 x 5.4 x 6.7 Weight: 9.2 oz Temperature: Operating temperature: 23 to 113°F (5 to 45 °C) Non-operating temperature: -13 to 158ºF (-25 to 70ºC) Humidity: Operating humidity: 5 to 95% noncondensing