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Dependable SATA midline drive suited for backups and file storage.
861750-B21
HPE 6TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty 512e HDD
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861750-B21
HPE 6TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty 512e HDD
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861750-B21 is a high-performance HDD engineered for demanding environments. Designed as a 3.5-inch drive with a SATA III interface, it operates at 7200 RPM and offers an 8 TB capacity combined with a 256 MB cache. The drive is rated for a continuous annual workload of 300 TB/yr, backed by an MTBF of 1,200,000 hours and engineered for 24/7 reliability.
861750-B21 is purpose-built for versatile use across desktop, server, NAS, and surveillance applications. With power consumption figures of 8.0 Watts during read/write operations and 6.0 Watts at idle, the drive incorporates advanced features such as helium sealing, built-in vibration protection, and dual actuator technology—making it an ideal solution for high-density data centers, enterprise storage systems, and robust surveillance environments.
861750-B21 price is $299.00, a 70.5% saving from the Hpe list price of $1,012.00. 861750-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 861750-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
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 861750-B21 |  K2R22A |  861683-B21 |  843268-B21 |  P09693-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 10 TB | 4 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 128 MB | 128 MB | 128 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 300 TB/yr | 180 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 8.0 Watts | 8 Watts | 9 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 6.0 Watts | 5 Watts | 6 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | No | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | No | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Rotational Vibration Sensors | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–55°C | 5–60°C | 5–55°C | 5–60°C | 5–60°C |
| Product Name | 861750-B21 | K2R22A Enterprise HDD | 861683-B21 Enterprise Performance HDD | 843268-B21 High-Performance SATA III HDD | P09693-B21 Enterprise Helium-Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1 in | 1.04 inches | 1.03 inches |
| Width | 4.00 inches | 5.79 inches | 5.8 in | 5.79 inches | 5.78 inches |
| Depth | 5.79 inches | 4.00 inches | 4 in | 4.00 inches | 8.74 inches |
| Weight | 1.80 lbs | 2.2 lbs | 2.2 lbs | 2.2 lbs | 3.5 lbs |
Dependable SATA midline drive suited for backups and file storage.
Consistent speeds and quiet operation in production.
Good capacity upgrade without surprises.
Stable performance for non critical workloads.
Reliable everyday HDD.
The HPE 861750-B21 offers 6 TB of raw storage capacity, ideal for high-density data environments.
This drive uses a SATA 6 Gb/s interface for reliable, high-speed data transfers.
The HDD spins at 7,200 RPM, balancing performance and power efficiency for midline workloads.
It features a 3.5-inch (LFF) form factor, compatible with standard server and storage enclosures.