Used Ceton InfiniTV 4. Previously used with a Comcast CableCARD. Includes original AC adapter and USB cable. Requires Windows 7 Media Center. NOTE: Ceton does not support drivers in Win 8 or 10. There may be other open source projects that support it outside of Windows 7 and Media Center, but I'm not aware of any. 

From the CetonCorp.com website:

Minimum system requirements:

  • PC with Microsoft Windows 7 SP1 Home Premium, Professional or Ultimate. Not compatible with Windows 8.
    • 2.0 GHz or faster dual-core or quad-core 64-bit (x64) processor
    • 3 GB of RAM (4 GB recommended)
    • 350 GB of available hard disk drive space recommended for 50 hours of HDTV recordings
    • 1 available USB 2.0 or greater port
    • HDCP-compliant graphics card or on-board graphics
    • HDMI output, or DVI output with separate 5.1 audio output required for Dolby 5.1 surround sound
  • One Multi-stream CableCARD™ (M-Card), available from your cable TV provider
  • Digital cable TV subscription from your local cable TV provider. HD package required to receive High Definition TV channels

Technical Specifications:

  • Four QAM 64/256 tuners
  • CableCARD M-Card DRM Processor
  • Open Cable Unidirectional Receiver Specification - OC-SP-OCUR-I11-130607
  • Digital Receiver Interface Specification - OC-SP-DRI-I04-100910
  • CableCARD Copy Protection 2.0 Specification - OC-SP-CCCP2.0-I10-090904
  • CableCARD Interface 2.0 Specification - OC-SP-CCIF2.0-I22-100910
  • Digital Cable Network Interface Standard - ANSI/SCTE 40 2011