Seagate Cheetah 15K.7 300 GB 15000RPM SAS 6 Gb/s 16MB Cache 3.5 Inch Internal Bare Drive ST3300657SS (Certified Refurbished) : Amazon.co.uk: Computers & Accessories
Western Digital Expands Its Highest-Performing Desktop Hard Drives To 4 TB Capacity | TechPowerUp
WD Blue WD10EZEX - Internal HDD Hard Drive - Built for NAS and RAID - 1TB Capacity - 3.5" Size - Serial ATA III - SATA 6Gbs - 7200 rpm - Buffer: 64 MB - Hunt Office UK