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794603-B21
HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine 3yr Warrant...
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.
794603-B21 is a high-performance HDD designed in a 3.5-inch form factor with a SATA III interface, featuring a 7200 RPM spindle speed and 4 TB of storage capacity. It is built with a 128 MB buffer, an annual workload rating of 300 TB/yr, and an MTBF of 1,000,000 hours, ensuring reliable operation rated for demanding hours per year across enterprise applications.
Ideal for data centers, desktops, NAS, and surveillance systems, this drive offers low power consumption at 9 W for read/write operations and 5 W in idle mode while integrating advanced rotational vibration sensors for enhanced stability. Although not helium-sealed, its robust design fits well in multi-bay environments and is engineered to meet rigorous server and enterprise storage requirements.
794603-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 794603-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
A global investment bank equips its Gen8 trading servers with the 794603-B21-HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine to ingest and query live market feeds at sub-microsecond latency. Benefit: 40% faster data retrieval and 30% higher trade throughput, enabling instant risk analysis and more profitable decision-making.
An enterprise IT department integrates the 794603-B21-HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine into Gen8 servers to power 500+ virtual desktops during peak login periods. Benefit: 50% reduction in boot times and seamless user experience under heavy workload, cutting help-desk tickets by 60%.
A leading media streaming provider deploys the 794603-B21-HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine on Gen8 edge servers to serve high-definition video chunks to millions of users. Benefit: 45% lower cache miss rates and 35% reduced backend traffic, ensuring faster content delivery and higher customer satisfaction.
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| 794603-B21 |  H6G42A |  779176-B21 |  Q6M05A |  P04570-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 | Server / NAS | Enterprise Storage | Enterprise Storage / Server | Desktop / Server / NAS / Surveillance |
| 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 | 6 TB | 8 TB | 10 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Data Transfer Rate | Up to 210 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 | 300 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 9 W | 8 Watts | 8 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 5 W | 5 Watts | 4 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | No |
| Helium Sealed | No | 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 | Rotational Vibration Sensors | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 794603-B21 Enterprise HDD | H6G42A Enterprise HDD | 779176-B21 Enterprise HDD | Q6M05A | P04570-B21 Hard Drive |
| Height | 1.0 inches | 1.03 inches | 1.03 inches | 1.00 inches | 1.03 inches |
| Width | 4.0 inches | 5.79 inches | 4.00 inches | 4.00 inches | 5.79 inches |
| Depth | 5.8 inches | 4.00 inches | 5.78 inches | 5.80 inches | 4.01 inches |
| Weight | 2.0 lbs | 1.65 lbs | 2.45 lbs | 1.2 lbs | 1.6 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.
PCIe RI mezzanine card offers fast and consistent reads.
Improved performance for analytics workloads.
Stable and reliable PCIe storage.
Easy deployment in supported servers.
Enterprise-grade PCIe solution.
The HPE 794603-B21 mezzanine card provides 1.2 TB of read-intensive solid-state storage to accelerate data-heavy workloads.
This card uses a PCIe Gen3 interface with four lanes (x4) for high-bandwidth, low-latency data transfer.
The HPE 794603-B21 is fully supported in HPE ProLiant Gen8 servers and all later generations.
HPE provides a standard three-year limited warranty, including parts replacement and global support.
The card delivers enterprise-grade read throughput and low latency optimized for high-I/O read workloads such as analytics and virtualization.
Ideal workloads include database query acceleration, analytics, virtualization boot drives, and content delivery read caching.
Power off the server, insert the card into an available mezzanine slot on the system board, secure it per HPE guidelines, and power on the server.
No. Installation and removal require a server shutdown to access and secure the mezzanine slot safely.
HPE validates this card on major enterprise OS platforms, including Microsoft Windows Server, Red Hat and SUSE Linux, and VMware ESXi.
Yes. It integrates with HPE Smart Array controllers for optional data-at-rest encryption and end-to-end data integrity.
Ensure the server’s HPE iLO and system ROM are updated to the latest revisions as specified in the HPE QuickSpecs for optimal compatibility.
Refer to the HPE QuickSpecs for part number 794603-B21 and use the HPE Compatibility Matrix to confirm support for your server model.
This card conforms to HPE standard mezzanine form factors with a low-profile design of approximately 167 mm × 69 mm.
Order the card using HPE part number 794603-B21 (SKU: 794603-B21) through authorized HPE channels.
Purchase from HPE or an authorized HPE channel partner, or through HPE’s official online storefront for guaranteed genuine parts.
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