Seagate SkyHawk Surveillance HDD ST4000VX013 - hard drive - 4 TB - SATA 6Gb - ST4000VX013 - -
Amazon.com: Seagate Skyhawk ST4000VX013 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Network Video Recorder, Video Surveillance System Device Supported : Electronics