Seagate Skyhawk 4 TB Surveillance Systems Internal Hard Disk Drive (HDD) ( ST4000VX013) - Seagate : Flipkart.com
Seagate ST4000VX013 | Seagate Surveillance HDD SkyHawk 3.5" 4000 GB Serial ATA III
Amazon.com: Seagate Skyhawk ST4000VX013 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Network Video Recorder, Video Surveillance System Device Supported : Electronics