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The Seagate BarraCuda 8TB at $268 offers $0.034 per GB — the best cost-per-gigabyte of any drive on this list and the right answer when raw storage capacity is the goal. At 5400 RPM it reads at around 180–220 MB/s, adequate for streaming stored video or sequential backups but not for workloads requiring fast random access. The 2-year warranty is shorter than WD's standard offering. For NAS use, Seagate's IronWolf line is better-suited; for desktop bulk storage and personal backup archives, the BarraCuda 8TB at $0.034/GB is the most economical spinning-disk option in this set.
HDD vs SSD — compare speed, cost per TB, reliability, and use cases. Find out when a hard drive still beats an SSD on value in 2026.
Read guide →Seagate vs Western Digital: Which Brand Should You Buy?Seagate vs WD hard drives comparison 2026. BarraCuda vs Blue, warranty comparison, failure rates, which brand is more reliable.
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