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Silver 3.5 inch SAS hard drive with green circuit board visible

HPE

HPE 819201-B21 8TB SAS 7200 RPM 3.5" internal hard drive

SKU CH-HK41-KDDVR MPN 819201-B21

8 TB SAS drive spinning at 7200 RPM in a 3.5 inch form factor for midline server storage

  • Total capacity8 TB
  • Interface typeSerial Attached SCSI (SAS)
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 8 TB capacity stores large datasets
  • 7200 RPM spindle speed supports quick data access
  • 12 Gbit/s SAS interface enables fast host connectivity
  • 5-inch LFF form factor fits standard drive bays
  • 512e sector format improves storage efficiency

8 TB SAS drive for midline servers

This HPE 819201-B21 hard drive delivers 8 TB of storage on a 12 Gb/s SAS interface. It spins at 7 200 RPM in a 3.5-inch large form factor and uses 512e sector formatting. The drive targets enterprise and midline workloads that require high-capacity, high-reliability bulk storage.

SAS interface limits hot-plug flexibility

The 12 Gb/s SAS link provides dual-port redundancy and consistent throughput for transaction-heavy workloads. However, the supplied carrier type determines whether the drive supports hot-plug replacement; non-hot-plug carriers require system downtime for swaps. Buyers must verify their chassis and backplane match the specific carrier variant shipped.

512e sector format decides compatibility

The 512e emulation layer allows the 8 TB drive to present 512-byte logical sectors to older controllers and operating systems. Systems or RAID controllers that lack 512e support will not recognise the full capacity or may refuse to initialise the drive. Confirm controller firmware and OS support before deployment.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $974.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 8 TB
Higher than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $121.87 per TB
Pricier than about 68% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameHPE
Model name819201-B21
Total capacity8 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSerial Attached SCSI (SAS)
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight3.18 kg
Package size275 × 220 × 150 mm

Questions about this item

Should I pick the 8 TB version or a smaller capacity for my midline storage array?

The 8 TB model 819201-B21 gives the highest single-drive capacity in this midline SAS line; choose it when you need maximum space per 3.5-inch bay.

What does the 7200 RPM rating mean for throughput in a live server?

At 7200 RPM the drive delivers midline-class sequential throughput suitable for bulk storage and backup workloads on a 12 Gbit SAS link.

How does the 12 G SAS interface limit real-world transfer speed?

The 12 Gbit SAS interface caps the drive's external transfer rate at 12 Gbit/s, so sustained reads and writes cannot exceed that ceiling.

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