Key takeaways
- 621 listings match this collection right now.
- Mainstream nearline drives at 12TB are helium-sealed; the lower internal drag lets manufacturers add platters without the extra power draw and vibration an air-filled drive of the same count would have.
- This capacity is built as a 7,200 RPM nearline-class drive, not a 10K or 15K performance part, since 12TB is well beyond the limits those performance classes work within.
- A sealed drive cannot be opened for service, so a failed 12TB unit is replaced rather than repaired, and the array has to carry enough redundancy for a rebuild at this capacity.
12TB drives are 3.5-inch helium capacity drives in 12Gb/s SAS and 6Gb/s SATA. Sector format (512e or 4Kn) has to match the array, and a hot-swap bay needs the generation-matched tray.
621 listings in this collection, filtered from Server Hard Drives. The part number and manufacturer are stated on every listing, and the condition wherever the catalogue records one. For quantity, request a volume quote.
How to choose server hard drives
Match the interface and link rate the controller or backplane presents, the bay width (2.5-inch or 3.5-inch), and the rotational class already in the array: 10K and 15K drives for latency-sensitive duty, 7200 RPM nearline drives for capacity. Replacing an array member also means matching capacity and sector format, or the controller can reject the drive.
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