SiliconDust HDHomeRun DUAL High Definition Digital TV Tuner HDHR3-US (Black) (2013 Model) Requirements: Dual core recommended for HD playback, 1 GB RAM recommended, 1-4 GB per 1/2 hour of DTV recording Seamless operation with multiple computers TV sources: ATSC digital TV (antenna), Unencrypted digital cable TV (Clear QAM) Two Digital Tuners, Anywhere on Your Network Works with popular DVR software Two Digital Tuners, Anywhere on Your Network TV sources: ATSC digital TV (antenna), Unencrypted digital cable TV (Clear QAM) Works with popular DVR software Seamless operation with multiple computers Requirements: Dual core recommended for HD playback, 1 GB RAM recommended, 1-4 GB per 1/2 hour of DTV recording