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804668-B21
HPE 400GB SATA 6G Write Intensive LFF (3.5in) SCC 3yr Warran...
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.
804668-B21 is a high-performance HDD engineered for robust computing environments. It features a 3.5-inch form factor with a SATA III interface, operating at 7200 RPM to deliver reliable 4 TB storage capacity alongside a 128 MB cache. The drive’s annual workload rating of 300 TB/yr, combined with an MTBF of 1,000,000 hours and a rated reliability designed for continuous operation, makes it a dependable choice for demanding applications.
Designed with advanced features including a helium-sealed construction, vibration protection, and dual actuator technology, 804668-B21 is optimized for diverse use cases such as data centers, desktops, NAS, and surveillance systems. Its energy-efficient power consumption further enhances its suitability for both enterprise and cost-sensitive operations across server and storage platforms.
804668-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 804668-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
Scenario: A mid-size e-commerce business struggles with slow order-processing and inventory updates during peak sale events. Implementation: Integrate the HPE 804668-B21 400GB SATA 6G Write-Intensive LFF SSD into an HPE ProLiant Gen8 RAID-10 array to optimize write cache and sustain high IOPS. Outcome: Achieves 60% lower transaction latency, 2.5× higher throughput under load and maintains ACID compliance – boosting customer experience and protecting revenue during traffic surges.
Scenario: A global enterprise rolls out 500 concurrent virtual desktops, experiencing slow boot storms and I/O contention on legacy drives. Implementation: Replace spinning disks with HPE 804668-B21 400GB SATA 6G Write-Intensive SSDs in each HPE ProLiant Gen8 host, configured for tiered caching. Outcome: Reduces boot-storm times by 50%, doubles IOPS per user and shrinks storage footprint by 40%, delivering seamless user experience and simplified management for IT operations.
Scenario: An IoT platform needs sustained write throughput for real-time sensor data ingest and analytics without batch delays. Implementation: Deploy HPE 804668-B21 400GB SATA 6G Write-Intensive SSDs as the hot tier in HPE ProLiant Gen8 servers, paired with a fast NVMe cache for mixed workloads. Outcome: Sustains 2,000 MB/s write bandwidth, delivers sub-second query response on streaming data and reduces total storage TCO by 30%, enabling instant insights and faster decision-making.
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| 804668-B21 |  Q2P86A |  816923-B21 |  877784-B21 |  819203-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 | Desktop / Server / NAS | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 4 TB | 4 TB | 4 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 128 MB | 128 MB | 256 MB | 512 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 180 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 4 Watts | 6 Watts | 5 Watts | 4 Watts | 5 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Single / 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 | 5–60°C | 5–55°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | 804668-B21 Enterprise HDD | Q2P86A High-Performance Enterprise HDD | 816923-B21 Enterprise HDD | 877784-B21 Enterprise Performance HDD | 819203-B21 Enterprise HDD |
| Height | 1.03 inches | 1.04 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 4 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 5.79 inches | 4.0 inches | 8.74 inches | 4.01 inches |
| Weight | 3.5 lbs | 3.3 lbs | 2.0 lbs | 2.2 lbs | 2.1 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.
Write intensive SSD delivered consistent results.
Good endurance for heavy workloads.
Easy to deploy in existing setup.
Reliable SSD choice.
Strong enterprise performance.
The HPE 804668-B21 SSD provides 400 GB of usable capacity, ideal for write-intensive applications.
This drive uses a SATA 6 Gb/s interface, ensuring broad compatibility and reliable data transfer rates.
It is a Large Form Factor (LFF) 3.5-inch SSD designed for standard server bays.
The SSD is write-intensive, optimized for high-transaction databases, logging, and other heavy-write applications.
It is certified for HPE Gen8 servers and all later platforms, ensuring seamless integration.
HPE backs this SSD with a three-year limited warranty and optional HPE Care Pack extensions.
It delivers up to 10 full drive writes per day (10 DWPD) over the three-year warranty period.
The SSD achieves up to 515 MB/s sequential read, 430 MB/s sequential write, 41,000 IOPS random read, and 37,000 IOPS random write.
Insert it into any standard 3.5″ drive bay using the included Smart Carrier caddy; the system will auto-detect the drive.
Yes. It supports hot-swap operations, allowing drive replacement without powering down the server.
Use HPE Smart Storage Administrator or HPE iLO to view drive health, firmware status, and performance metrics.
Yes. It supports S.M.A.R.T. features for proactive monitoring and early failure detection.
Yes. You can mix SSDs and HDDs in the same enclosure; configure tiers or volumes according to your performance needs.
Compared to read-intensive SSDs, it offers significantly higher endurance and sustained write performance for heavy-write workloads.
Download the latest firmware from the HPE Support Center and apply updates via HPE Smart Storage Administrator.
The Smart Carrier includes an integrated activity LED and hardware encryption support, simplifying install and security.
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