Voltage - Input Range (Volts) NONE The DISH ViP211z is a high-definition (HD), single-tuner satellite receiver that is perfect for mobile use and supports pay-as-you-go programming. Smaller and lighter than previous models, with a processor more than twice as fast as previous models and with twice the internal memory. Its compact design is perfect in limited space. The ViP211z supports one TV in high-definition (HD) or standard-definition (SD), four display resolutions and Dolby Surround Receiver is design for one TV:View HD over the air digital broadcasts (antenna required) Supports TV resolutions: 480i, 480p, 720p, 1080i REAR PANEL CONNECTIONS:[1] Satellite tuner input[1] USB 2.0 port (for DVR conversion. See below for details) [1] Ethernet port [1] 3-prong power cord A/V CONNECTIONS: [1] HDMI output [1] Set RCA-type audio/video outputs [1] optical digital output for Dolby Digital and PCM Digital audioREMOTE CONTROL:[1] One universal infrared (IR) 4-component remote controlCan be programmed to operate up to 3 additional devices (TV, VCR,DVD players, AV receiver)