Seagate 4 TB Wired External Hard Disk Drive (HDD) - Seagate : Flipkart.com
Amazon.com: SEAGATE Video HDD ST4000VM000 4TB 5900RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Hard Drive (Certified Refurbished)- w/1 Year Warranty : Electronics
Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack - Walmart.com
Amazon.com: Seagate Portable 4TB External Hard Drive HDD – USB 3.0 for PC, Mac, Xbox, & PlayStation - 1-Year Rescue Service (STGX4000400) : Electronics