The 500GB My DVR Expander External Hard Drive from Western Digital allows you to add recording capacity to DVR cable boxes with eSATA connectivity. Its spacious 500GB capacity can hold up to 50 hours of HDTV or up to 300 hours of SDTV.
Certified for use with Scientific Atlanta 8300, TiVo Series3, and TiVoHD
Fanless passive cooling system ensures quiet operation for home theater use
Add recording space to your DVR