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793665-B21
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- HPE 4TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Warranty 512e HDD
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3 Year Extended Warranty
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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
793665-B21 Overview
793665-B21 is a robust 3.5-inch HDD with a SATA III interface, operating at 7200 RPM and offering a storage capacity of 4 TB paired with a 256 MB cache. Designed for demanding environments, this drive features an MTBF of 1,000,000 hours and is rated for 8,760 hours of operation per year, ensuring reliable performance in data centers, desktops, and NAS deployments.
Engineered for heavy workload applications with a 550 TB/yr annual workload rating, the drive delivers efficient performance while consuming approximately 9.0 Watts during read/write operations and 5.0 Watts at idle. With advanced features such as helium-sealed construction, vibration protection, and dual actuator technology, 793665-B21 is ideally suited for surveillance, server, and enterprise storage use cases.
What is the price of 793665-B21?
Pricing for 793665-B21 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for 793665-B21.
Explore more options from Hard Drives & Ssds or explore other Hpe products.
793665-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 250 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 9.0 Watts |
| Power Consumption (Idle) | 5.0 Watts |
| Encryption Support | No |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Dual Actuator |
| Operating Temperature | 5–60°C |
| Product Name | 793665-B21 High Performance Enterprise HDD |
| Height | 1.03 inches |
| Width | 5.79 inches |
| Depth | 4.00 inches |
| Weight | 1.65 lbs |
793665-B21 Use Case
Enterprise Backup & Archiving with HPE 4TB SATA 6G Midline HDD
A mid-sized financial services firm implements the HPE 793665-B21 4TB SATA 6G Midline 7.2K LFF HDD in its ProLiant backup servers to store multi-year transaction logs. The drive’s 512e format and optimized sequential writes accelerate nightly backups by up to 30%, ensure compliance-grade retention, and reduce TCO through high-density, cost-effective capacity.
24/7 Video Surveillance Storage for Retail Chains
A national retailer deploys HPE 4TB SATA 6G Midline HDDs in distributed NVR appliances to record HD camera streams across 100+ stores. The 7.2K RPM performance and robust MTBF deliver continuous sequential write throughput, supporting 30-day footage retention per site. This scalable solution lowers hardware spend by 40% versus SSD arrays while maintaining reliable video archiving.
Virtualization & Cloud Workload Expansion
A managed service provider scales its HPE ProLiant virtualization cluster using 793665-B21 4TB SATA 6G Midline HDDs to host customer VMs and containerized applications. The drives’ 512e sector efficiency and HPE Smart Array compatibility enable balanced I/O performance and high-capacity VM storage, increasing VM density by 25% and cutting per-VM storage costs by 35%.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 300 TB/yr | 300 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| 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 |
| Depth | 6.9 inches | 7.2 inches | 4.01 inches | 4 in | 4.00 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | No | AES 256-bit | AES 256-bit | AES 256-bit | No |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.0 inches | 1.03 inches | 1.02 inches | 1 in | 1.03 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 5.0 Watts | 5 Watts | 4 Watts | 5 W | 5.0 Watts |
| Power Consumption (Read/Write) | 8.0 Watts | 8 Watts | 8 Watts | 8 W | 9.0 Watts |
| Product Name | 861756-B21 | 881785-B21 Enterprise HDD | 843266-B21 4TB Desktop HDD | 846524-B21 Enterprise HDD | 793665-B21 High Performance Enterprise HDD |
| 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 / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 2.0 lbs | 1.6 lbs | 1.5 lbs | 2.0 lbs | 1.65 lbs |
| Width | 5.8 inches | 5.8 inches | 5.79 inches | 5.79 in | 5.79 inches |
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Questions & Answers
Q
What are the key specifications of the HPE 4TB SATA 6G Midline 7.2K LFF (3.5in) SC HDD (SKU 793665-B21)?
A
The HPE 793665-B21 is a 4 TB, 7,200 RPM, SATA 6 Gb/s Midline drive in a 3.5″ form factor with 512e sectors, hot-plug support and a 1-year HPE warranty.
Q
Is the HPE 4TB SATA 6G Midline HDD compatible with my HPE ProLiant server?
A
Yes, SKU 793665-B21 is fully certified for HPE ProLiant Gen8 and Gen9 servers with SATA backplanes and supports HPE SmartArray controllers.
Q
How do I install the HPE 4TB SATA 6G Midline 7.2K LFF HDD?
A
Power down your server, insert the drive into an available 3.5″ bay, secure with the drive carrier, then power on and configure via your HPE Smart Array utility.
Q
What performance can I expect from a 7.2K RPM HPE Midline drive?
A
You can expect sustained sequential reads and writes around 200 MB/s with typical latency under 4.2 ms, ideal for bulk storage and streaming workloads.
Q
What does 512e sector format mean for this HDD?
A
512e indicates 4,096-byte physical sectors with 512-byte emulation, ensuring legacy OS compatibility while improving data correction efficiency.
Q
Can I include the HPE 4TB Midline drive in RAID arrays?
A
Yes, this drive works in RAID 0, 1, 5, 6, 10, 50 and 60 configurations when paired with a compatible HPE Smart Array controller.
Q
What warranty coverage is provided with SKU 793665-B21?
A
HPE supplies a 1-year limited warranty, covering defects in materials and workmanship with global parts replacement service.
Q
Is the HPE 4TB SATA 6G Midline HDD suitable for archival storage?
A
Yes, its high capacity and optimized power usage make it ideal for cold or warm archival data where performance demands are moderate.
Q
What power consumption should I expect from this 3.5in drive?
A
The drive typically consumes 7.5 W during read/write operations and under 3 W in idle, helping to reduce server power costs.
Q
Is the HPE 4TB SATA Midline HDD hot-swappable?
A
Yes, the drive supports hot-plug insertion and removal in any SAS/SATA backplane–enabled 3.5″ bay without system downtime.
Q
What interface does the HPE 793665-B21 drive use?
A
It uses a standard SATA 6 Gb/s interface, compatible with HPE and third-party SATA controllers supporting 6 Gb/s data rates.
Q
How do I monitor drive health and status?
A
Use the HPE Smart Storage Administrator or Integrated Lights-Out (iLO) to view SMART attributes, temperature and error statistics.
Q
What are the recommended cooling requirements for this HDD?
A
Maintain an inlet temperature of 10 °C to 35 °C and ensure airflow of at least 23 CFM per drive bay for optimal operation.
Q
What are the physical dimensions and weight of the drive?
A
The drive measures 146 mm × 101.6 mm × 25.4 mm (L×W×H) and weighs approximately 675 g, fitting standard 3.5″ drive trays.
Q
How does a Midline HDD differ from an Enterprise HDD?
A
Midline drives balance cost and capacity with lower duty cycles and slightly higher latency compared to higher-end, 24/7 Enterprise models.
Q
How reliable is the HPE 4TB SATA 6G Midline HDD?
A
Engineered for 550,000 load/unload cycles and a 0.55% annual failure rate, it offers enterprise-level reliability for general-purpose storage.
