[ G01-1549-CRD-5YR ] HGST Ultrastar HC520 HUH721212ALE601 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5" Helium Datacenter Hard Drive (Certified Refurbished) - 5 Year Warranty
NOTE: These HDDs were previously used in datacenter servers for about 6–7 years and have been professionally refurbished. All data has been securely erased using DoD standard wiping procedures, and each drive has passed a full factory diagnostic test to ensure performance and reliability.
Built as heavy-duty enterprise drives with a 2.5M-hour MTBF rating, they are designed to last. That’s why we are confident in backing them with a 5-Year Warranty — giving you extra peace of mind.
✔ Fully tested & certified
✔ DoD data wiped
✔ Enterprise-grade durability
✔ 5-Year Warranty included
Each HDD has completed a sector-by-sector test, showing anywhere from 100–1000 reallocated (bad) sectors. For perspective, on a 12TB HDD with 23,437,500,000 total sectors, even 1,000 bad sectors equals only 0.000004% of the drive — practically negligible and well within acceptable tolerance. This does not affect performance or reliability.
Buy with confidence — worry-free storage you can trust!
HGST Ultrastar HC520 12TB HARD DRIVE -HUH721212ALE601 delivers the world’s first hermetically sealed, helium hard drive, the Ultrastar® He10 for massive scale-out environments. Why does helium make a diference? Helium has only one-seventh the density of air. Replacing air with helium inside a hard drive dramatically reduces the turbulence caused by the spinning disks, cuts power consumption and results in a lower temperature within the disk drive.
The reduction in turbulence for the spinning disk allows WD / HGST to deliver a seven-disk design in a traditional 3.5-inch form factor. In addition to being the world’s first helium-filled hard drive, HGST Ultrastar He6 is also the first hard drive in the industry to o er a 14-terabyte capacity. This design provides a 50% capacity gain and still reduces the energy needed to run the drive by up to 23%.
Key Advantages/Highlights- World’s first helium-filled hard drive
- Industry-first 12TB capacity in a standard
- 3.5-inch form factor
- HelioSeal® process and 7StacTM design are keys to hermetically sealed drive with higher capacity
- TCOptimized design delivers on key elements of data center TCO: capacity, power, cooling and storage density
- SAS & SATA 6Gb/s models for configuration flexibility
- Self-Encrypting Drive (SED) options for HDD-level data security
Applications/Environments- High-density data centers
- Massive scale-out data centers
- Containerized data centers
- Nearline storage applications
- Bulkstorage
- Enterprise and data center applications where density and capacity are paramount
Features:- Capacity: 12TB (12000GB)
- Buffer: 256 MB Cache
- Rotation Speed: 7200RPM
- Interface: SATA 6.0Gb/s
- Built on award-winning proven design
- Enterprise Grade 3.5" Hard Drive