 "Seagate IronWolf ST1000VN002 - hard drive 1 TB SATA 6Gb/s" " Seagate 6Gb/s Internal Desktop Hard Drives CDW.com
"The Power of Agility for home, SOHO and SMB NAS enclosures. IronWolf is designed for everything NAS. Get used to tough, ready and scalable 24/7 performance that can handle multi-drive environments with a wide range of capacities." 
 "WD 1TB 3.5" SATA Surveillance Storage Purple Hard Drive for CCTV DVR NVR & HOME PC System -WD10PURZ"@en
 Specification 1TB Model Number WD10PURZ Formatted capacity 1TB Form factor 3.5 inch Advance format (AF) Yes Interface transfer rate (max)   Buffer to host 6 Gb/s Host to/from drive (sustained) 110 MB/s Cache (MB) 64 Performance class / Rotational speed (RPM) 5400 RPM Class Weight (kg) 0.45