Hard Drives
Seagate 4 TB 2.5-Inch BarraCuda Internal Hard Drive - Silver
Rock-solid reliability built on over 20 years of BarraCuda innovation Versatile mix of capacity and price point options to fit any budget Multi-tier Caching technology for high hard drive performance Up to 140 MB/s maximum sustained data transfer rate
https://www.bizrate.co.uk/harddrives/seagate-4-tb-2-5-inch-barracuda-oid8241135352.html