3TB Western Digital WD Blue 3.5-inch SATA III Desktop Hard Drive (5400rpm, 64MB cache) - Walmart.com
3TB HDD Sata 6G Special CCTV. 64MB buffer.
WD Red WD30EFAX - Hard drive - 3 TB - internal - 3.5 - SATA 6Gb/s - 5400 rpm - buffer: 256 MB (WD30EFAX) verslui | Atea eShop
Amazon.com: Seagate BarraCuda 3TB Internal Hard Drive HDD – 2.5 Inch Sata 6Gb/s 5400 RPM 128 MB Cache for Computer Desktop PC (ST3000LM024) : Electronics
3TB WD PURPLE ACL-HDD (HARD DISK ) – Ashik Computer