United States
Name:
794605-B21
- Description:
- HPE 1.6TB PCIe x4 Lanes Read Intensive Mezzanine 3yr Warranty Card Supports Gen8 Servers and Beyond
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3 Year Extended Warranty
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Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
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Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
TRUSTED, TRIED, PROVEN
794605-B21 Overview
794605-B21 is a high-performance HDD engineered with a 3.5-inch form factor and a SATA III interface, delivering reliable storage with a 7200 RPM spindle speed and a capacity of 4 TB. Designed for continuous operation, it features a 256 MB cache and an annual workload rating of 300 TB/yr, ensuring optimal performance for data-intensive applications.
Optimized for varied environments including desktops, servers, NAS systems, and surveillance setups, 794605-B21 supports multi-bay deployments while maintaining low power consumption (8 Watts for read/write and 6 Watts when idle). Its advanced features, including a helium-sealed design, vibration protection, and dual actuator technology, make it ideal for demanding use cases in data centers and high-availability storage infrastructures.
What is the price of 794605-B21?
Pricing for 794605-B21 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for 794605-B21.
Explore more options from Hard Drives & Ssds or explore other Hpe products.
794605-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) | 256 MB |
| Average Latency | N/A |
| Data Transfer Rate | Up to 210 MB/s |
| Annual Workload Rating | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts |
| Power Consumption (Idle) | 6 Watts |
| Encryption Support | AES 256-bit |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Dual Actuator |
| Operating Temperature | 5–60°C |
| Product Name | 794605-B21 High Performance Hard Drive |
| Height | 1.03 inches |
| Width | 5.79 inches |
| Depth | 7.78 inches |
| Weight | 2.0 lbs |
794605-B21 Use Case
Real-Time Financial Analytics Acceleration
In a trading firm deploying HPE Gen8 servers, the 794605-B21 HPE 1.6 TB PCIe x4 Read-Intensive Mezzanine Card caches streaming market data and historical tick records. Its high IOPS and low latency ensure sub-millisecond query responses for risk-adjusted pricing and compliance reporting. Outcome: 40% faster trade decision cycles, stronger SLAs, and reduced data-store bottlenecks under peak market load.
High-Density Virtual Desktop Infrastructure (VDI)
An enterprise IT team uses the 794605-B21 card in a Gen8 blade cluster to handle boot storms and user-profile loads across 500+ virtual desktops. The read-optimized SSD delivers consistent performance during concurrent logins and application launches. Outcome: 60% reduction in login times, improved end-user experience, and 30% higher VM density per server.
Edge-Caching for Content Delivery Networks
A telecom operator integrates the 794605-B21 HPE card in edge servers to store frequently accessed video streams and web assets. Leveraging PCIe x4 bandwidth and a 1.6 TB capacity, the system offloads origin traffic and accelerates content delivery. Outcome: 50% lower backbone bandwidth costs, 25% faster page-load times for end users, and scalable caching across Gen8 and newer platforms.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | N/A | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 550 TB/yr | 180 TB/yr | 300 TB/yr | 180 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 128 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 210 MB/s |
| Depth | 5.79 inches | 4.00 inches | 7.78 inches | 3.9 inches | 8.66 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1 inch | 1.00 inches | 1.03 inches | 1.0 inches | 1.03 inches |
| Helium Sealed | No | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 5 Watts | 5 W | 6 Watts | 5.6 Watts | 4 Watts |
| Power Consumption (Read/Write) | 8 Watts | 8 W | 8 Watts | 8.5 Watts | 8 Watts |
| Product Name | 507284-001 Enterprise HDD | P10448-B21 4TB 7200RPM Helium-Sealed HDD | 794605-B21 High Performance Hard Drive | Q2T62A Enterprise HDD | 759210-B21 |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 4 TB | 4 TB | 4 TB | 4 TB | 4 TB |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 2.0 lbs | 2.20 lbs | 2.0 lbs | 2.0 lbs | 2.2 lbs |
| Width | 4 inches | 5.80 inches | 5.79 inches | 5.8 inches | 5.79 inches |
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Questions & Answers
Q
What is the storage capacity of the HPE 794605-B21 Mezzanine Card?
A
The HPE 794605-B21 Mezzanine Card delivers 1.6 TB of read-intensive NAND flash capacity in a mezzanine form factor.
Q
Which interface and protocol does this card support?
A
This card uses a PCIe Gen3 x4 interface with NVMe protocol to maximize throughput and I/O performance.
Q
Is the HPE 794605-B21 compatible with HPE Gen8 and later servers?
A
Yes, the HPE 794605-B21 is fully compatible with HPE ProLiant Gen8, Gen9, Gen10, and later server models.
Q
What workloads are best suited for this read-intensive mezzanine card?
A
It is optimized for read-intensive applications such as web serving, content delivery, database query acceleration, and analytics.
Q
What are the key performance specifications?
A
Typical performance reaches up to 200,000 random read IOPS and sustained sequential throughput of 1.5 GB/s.
Q
How long is the manufacturer’s warranty?
A
This card is backed by a 3-year limited warranty from HPE, covering hardware defects and firmware updates.
Q
How do I install the HPE 794605-B21 in my server?
A
Power down the server, insert the card into an available mezzanine slot, secure the retention bracket, and power up for automatic detection.
Q
Does the card require special drivers or software?
A
No special drivers are required; it is supported natively by HPE Smart Array controllers and standard NVMe drivers in modern OS environments.
Q
Can I update the firmware on this mezzanine card?
A
Yes, firmware can be updated through the HPE Service Pack for ProLiant (SPP) or HPE Smart Update Manager.
Q
Does the HPE 794605-B21 support hardware encryption?
A
Hardware encryption is managed at the controller level; use HPE Smart Storage encryption features to secure data in flight and at rest.
Q
What is the MTBF (Mean Time Between Failures)?
A
The card is engineered for reliability with an MTBF rating exceeding 2 million hours under typical operating conditions.
Q
Which operating systems are supported?
A
It supports major enterprise OS platforms including Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware ESXi.
Q
How is the HPE 794605-B21 monitored and managed?
A
Use HPE Smart Storage Administrator (SSA) or HPE System Insights to monitor health, capacity, and performance metrics in real time.
Q
What power consumption should I expect?
A
Typical active power consumption is 8.4 W, with idle power around 3.5 W to maintain data retention.
Q
Is this mezzanine card hot-swappable?
A
No, the mezzanine card must be installed or removed with the server powered down according to HPE installation guidelines.
Q
What use cases benefit most from this card?
A
Ideal use cases include caching layers, database acceleration, virtualization storage tiers, and read-heavy content delivery networks.
