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PCIe RI mezzanine card offers fast and consistent reads.
794603-B21
HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine 3yr Warrant...
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794603-B21
- Description:
- HPE 1.2TB PCIe x4 Lanes Read Intensive Mezzanine 3yr Warranty Card Supports Gen8 Servers and Beyond
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- Hpe
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3 Year Extended Warranty
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794603-B21 Overview
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.
794603-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 128 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 300 TB/yr
- Power Consumption (Read/Write)
- 9 W
- Power Consumption (Idle)
- 5 W
- Encryption Support
- AES 256-bit
- Helium Sealed
- No
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Rotational Vibration Sensors
- Operating Temperature
- 5–60°C
- Product Name
- 794603-B21 Enterprise HDD
- Height
- 1.0 inches
- Width
- 4.0 inches
- Depth
- 5.8 inches
- Weight
- 2.0 lbs
794603-B21 Use Case
Accelerating Real-Time Financial Analytics with 794603-B21-HPE Mezzanine
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.
Optimizing VDI Boot Storms Using 794603-B21-HPE Read-Intensive Storage
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%.
Enhancing CDN Caching Performance with 794603-B21-HPE Mezzanine Card
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.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 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 |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| 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 |
Reviews & Ratings
F
Farhan Yousaf
5
Improved performance for analytics workloads.
A
Anneliese Braun
5
Stable and reliable PCIe storage.
T
Tariq Jamil
5
Easy deployment in supported servers.
R
Roger Bennett
5
Enterprise-grade PCIe solution.
Questions & Answers
What is the storage capacity of the HPE 794603-B21 mezzanine card?
The HPE 794603-B21 mezzanine card provides 1.2 TB of read-intensive solid-state storage to accelerate data-heavy workloads.
Which interface and lane configuration does the HPE 794603-B21 use?
This card uses a PCIe Gen3 interface with four lanes (x4) for high-bandwidth, low-latency data transfer.
Which HPE server generations are compatible with this mezzanine SSD?
The HPE 794603-B21 is fully supported in HPE ProLiant Gen8 servers and all later generations.
What warranty coverage comes with the HPE 1.2 TB Read Intensive Mezzanine Card?
HPE provides a standard three-year limited warranty, including parts replacement and global support.
What performance can I expect from this read-intensive SSD card?
The card delivers enterprise-grade read throughput and low latency optimized for high-I/O read workloads such as analytics and virtualization.
What primary workloads benefit from this mezzanine SSD?
Ideal workloads include database query acceleration, analytics, virtualization boot drives, and content delivery read caching.
How do I install the HPE 794603-B21 mezzanine card in my server?
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.
Is the HPE 1.2 TB mezzanine card hot-swappable?
No. Installation and removal require a server shutdown to access and secure the mezzanine slot safely.
Which operating systems are supported with this mezzanine SSD?
HPE validates this card on major enterprise OS platforms, including Microsoft Windows Server, Red Hat and SUSE Linux, and VMware ESXi.
Does the HPE 794603-B21 support advanced data protection features?
Yes. It integrates with HPE Smart Array controllers for optional data-at-rest encryption and end-to-end data integrity.
What firmware requirements exist for this HPE mezzanine card?
Ensure the server’s HPE iLO and system ROM are updated to the latest revisions as specified in the HPE QuickSpecs for optimal compatibility.
How can I verify server compatibility before purchase?
Refer to the HPE QuickSpecs for part number 794603-B21 and use the HPE Compatibility Matrix to confirm support for your server model.
What are the physical dimensions of the mezzanine card?
This card conforms to HPE standard mezzanine form factors with a low-profile design of approximately 167 mm × 69 mm.
What is the SKU or part number for ordering this SSD card?
Order the card using HPE part number 794603-B21 (SKU: 794603-B21) through authorized HPE channels.
Where can I purchase the HPE 1.2 TB PCIe x4 Read-Intensive Mezzanine Card?
Purchase from HPE or an authorized HPE channel partner, or through HPE’s official online storefront for guaranteed genuine parts.