 "Seagate BarraCuda 2TB SATA III 3.5" Hard Drive" Drive - 7200RPM 64MB ST2000DM006 | CCL Computers"
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                                Seagate brings over 20 years of trusted performance and reliability to the Seagate BarraCuda 3.5 inch HDDs-now available in capacities up to 4TB. Versatile mix of capacity and price point options to fit any budget. Multi-Tier Caching technology for excellent hard drive performance. BarraCuda leads the industry with the highest capacities for desktops and mobile computers.The uncompromising BarraCuda marries industry-leading storage capacity with 7,200 RPM spin speeds for snappy performance and load times when gaming or performing heavy workloads. 

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 "WD Blue 4TB 5400rpm SATA 6Gb/s 64MB Cache HDD (WD40EZRZ)"@en "▷ WD (WD40EZRZ) | OcUK"@en
"4TB Capacity, 3.5 inch, SATA 6Gb/s Interface, IntelliPower 5400rpm Spin Speed, 64MB Cache, 2 Year Warranty."@en 