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804631-B21
HP 1.6TB 6G SATA MIXED USE-2 SFF 2.5-IN SC SOLID STATE DRIVE
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
804631-B21 is a high-performance HDD engineered for enterprise storage and multi-bay environments. It features a 3.5-inch form factor, a SATA III interface, and a robust 7200 RPM spindle speed. With a generous 8 TB capacity and a 256 MB buffer, this drive is designed to handle rigorous workloads while delivering reliable, high-speed data transfer rates up to 250 MB/s.
Built for demanding server, NAS, and surveillance use cases, the drive supports an annual workload rating of 180 TB/yr and comes equipped with advanced dual actuator technology for improved performance under vibration. 804631-B21 is also optimized for energy efficiency with an 8.5 Watts read/write power consumption and 5 Watts in idle mode, making it an ideal choice for data centers and desktop setups requiring dependable, continuous operation.
804631-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 804631-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
In a 24/7 stock trading environment, the 804631-B21 HP 1.6TB 6G SATA Mixed Use-2 SFF 2.5″ SC SSD backs SQL Server clusters handling millions of daily transactions. Its 3 DWPD endurance and sustained 80K random IOPS at sub-millisecond latency ensure order-to-execution times shrink by 30%, maintain 99.99% uptime and deliver regulatory compliance with built-in AES-256 encryption.
For a global enterprise deploying 2,000 remote desktops on VMware vSAN, the 1.6TB 6G SATA Mixed Use-2 SSD provides 70K+ sustained IOPS and consistent sub-0.5 ms response. The drive’s high endurance and power-loss protection cut boot-storm delays in half, boost end-user productivity by 25% and lower rack density by consolidating storage bays.
At telecom base stations running real-time edge analytics, the HP 804631-B21 SSD ingests and persists sensor data streams from 100+ IoT endpoints. Its robust Mixed Use-2 design and industrial-temperature rating deliver sub-millisecond access and 3 DWPD reliability, enabling continuous AI inference, reducing backhaul traffic by 40% and ensuring 24/7 service availability.
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| 804631-B21 |  K2P91A |  P04517-B21 |  804599-B21 |  881457-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 2.5-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 | 256 MB | 256 MB | 128 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 550 TB/yr | 180 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 8 Watts | 8 Watts | 10 Watts |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 5 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | 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 | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–55°C | 5–60°C | 5–60°C | 5–55°C | 0–60°C |
| Product Name | 804631-B21 | K2P91A Enterprise HDD | P04517-B21 High Performance Enterprise HDD | 804599-B21 High Performance Helium-Sealed HDD | 881457-B21 |
| Height | 1.03 inches | 1 in | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4.0 inches | 5.8 in | 5.77 inches | 5.79 inches | 5.79 inches |
| Depth | 5.8 inches | 4 in | 8.00 inches | 4.00 inches | 4.01 inches |
| Weight | 1.5 lbs | 1.5 lbs | 1.65 lbs | 2.20 lbs | 1.75 lbs |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Larger SATA MU SSD delivers steady performance.
Reliable under mixed workloads.
Smooth installation and stable operation.
Good option for enterprise servers.
Predictable SATA SSD performance.
The HP 804631-B21 provides 1.6 TB of usable solid-state storage, ideal for high-density data and application workloads.
It connects via a 6 Gb/s SATA interface for broad compatibility with enterprise server and storage platforms.
This drive is a 2.5-inch small form factor (SFF) solid-state drive, designed for modern rack and blade servers.
It delivers up to 530 MB/s sequential read, 490 MB/s sequential write, up to 100,000 IOPS random read and 35,000 IOPS random write.
It is rated for 5 Drive Writes per Day (DWPD) over a five-year period, equivalent to up to 2,900 TB total bytes written.
Yes. The Mixed Use-2 classification balances read/write performance for virtualization, databases and general-purpose applications.
Yes. It is a self-encrypting drive (SED) with hardware-based data protection enabled by default.
It supports AES 256-bit full-disk encryption, TCG Opal 2.0 and is FIPS 140-2 Level 2 validated.
It is certified for HP ProLiant Gen8, Gen9 and Gen10 servers and other platforms supporting 2.5″ SATA SFF drives.
The drive is rated for a 2 million-hour MTBF at 25 °C, ensuring enterprise-class reliability.
It operates reliably between 0 °C and 60 °C ambient temperature.
Yes. HP offers a standard five-year limited warranty covering defects in materials and workmanship.
Simply hot-plug the drive into a compatible 2.5″ SATA bay or caddy; no additional drivers or configuration are required.
Yes. It is fully compatible with HP Smart Array controllers for RAID 0, 1, 5, 6 and 10 configurations.
It delivers enterprise-grade performance, mixed-use endurance, self-encryption, low latency and industry-leading reliability.
Mixed Use-2 is engineered for balanced read/write workloads, improving performance consistency in virtualization, databases and OLTP applications.
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