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Name:
737261-B21
- Description:
- HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC CONVERTER HDD
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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
737261-B21 Overview
737261-B21 is a high-performance HDD designed with a 3.5-inch form factor and a SATA III interface. It delivers a robust 7200 RPM spindle speed with 4 TB of storage capacity, complemented by a 128 MB cache. The drive meets a rigorous annual workload rating of 180 TB/yr and features an impressive MTBF that underpins its reliability, making it ideal for intensive usage environments.
The 737261-B21 is tailored for desktop, server, NAS, and surveillance use cases, offering optimal power consumption for read/write and idle operations. Advanced features include a helium-sealed design with vibration protection and dual actuator technology, ensuring smooth operation in data centers, desktops, NAS systems, and surveillance setups.
What is the price of 737261-B21?
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Explore more options from Hard Drives & Ssds or explore other Hpe products.
737261-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 250 MB/s |
| Annual Workload Rating | 180 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts |
| Power Consumption (Idle) | 5.5 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 | 737261-B21 |
| Height | 1 in |
| Width | 4 in |
| Depth | 5.8 in |
| Weight | 1.6 lbs |
737261-B21 Use Case
Accelerating High-Frequency Trading Engines with 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD
In a financial services firm’s data center, an algorithmic trading platform leverages the 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD as primary storage for low-latency order matching. By delivering sustained 200,000 IOPS and sub-millisecond seek times, this drive ensures real-time market data ingestion, reduces trade execution slippage, and boosts overall throughput by 35%, strengthening competitive advantage.
Optimizing VMware VDI Performance with 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD
A global consultancy deploys the 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD in a VMware vSphere cluster to host 800+ persistent desktops. High rotational speed and enterprise-grade SAS interface cut boot storms by 50%, accelerate login times by 40%, and maintain consistent I/O under peak loads, elevating end-user satisfaction and reducing helpdesk tickets.
Enhancing Big Data Analytics Nodes with 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD
In a healthcare analytics environment, Hadoop data nodes integrate the 737261-B21 HP 300GB 12G SAS 15K RPM LFF 3.5-INCH SC Converter HDD to store intermediate data sets. The drive’s high throughput and 12 Gb/s SAS bandwidth accelerate map-reduce jobs by 30%, shorten ETL cycles, and enable near-real-time insights on patient records, ensuring compliance and driving faster clinical decision support.
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 | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 180 TB/yr |
| Average Latency | N/A | N/A | 8.5 ms | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Depth | 4.00 inches | 8.5 inches | 4.00 inches | 7.78 inches | 5.8 in |
| 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 | AES 256-bit | AES 256-bit | No | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.02 inches | 1.0 inches | 1.03 inches | 1.03 inches | 1 in |
| 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 | 5–55°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 5.0 Watts | 6 Watts | 5.5 Watts |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8.5 Watts | 8 Watts | 8.5 Watts |
| Product Name | 872487-B21 Enterprise HDD | 875492-B21 Enterprise 4TB HDD | 872346-B21 Enterprise Helium-Sealed HDD | 801884-B21 Enterprise HDD | 737261-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 | 8 TB | 8 TB | 4 TB |
| Use Case | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 3.0 lbs | 2.0 lbs | 2.20 lbs | 2.2 lbs | 1.6 lbs |
| Width | 5.79 inches | 5.8 inches | 5.79 inches | 5.79 inches | 4 in |
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Questions & Answers
Q
What are the key specifications of the HP 737261-B21 300GB SAS 15K RPM LFF converter HDD?
A
The HP 737261-B21 offers 300 GB capacity, 12 Gb/s SAS interface, 15 000 RPM spindle speed, 3.5-inch LFF form factor, and SC converter technology for superior performance.
Q
Which servers are compatible with the HP 737261-B21 HDD?
A
This drive is fully compatible with HP ProLiant Gen8 and Gen9 servers, HP Apollo storage systems, and any SAS-enabled chassis supporting 3.5-inch LFF bays.
Q
Is the 737261-B21 hot‐swappable?
A
Yes, the HP 737261-B21 is hot-swappable in supported HP enclosures, allowing drive replacement or upgrade without server downtime.
Q
How does the SC converter enhance drive performance?
A
The SC converter design optimizes signal integrity and reduces latency, delivering faster seek times and improved IOPS for mission-critical workloads.
Q
What RAID levels are supported with this HP SAS drive?
A
When used with HP Smart Array controllers, the drive supports RAID 0, 1, 5, 6, 10, 50, and 60 for flexible data protection and performance.
Q
What are the typical use cases for the HP 737261-B21?
A
Ideal for high-transaction databases, virtualization, e-mail servers, and enterprise applications requiring low latency and high throughput.
Q
What is the average data transfer rate of this HDD?
A
The HP 737261-B21 delivers sustained transfer rates up to 210 MB/s, maximizing data throughput in demanding environments.
Q
What is the mean time between failures (MTBF) for this drive?
A
The drive is rated at 2 million hours MTBF, ensuring industry-leading reliability and continuous operation.
Q
Which cable or backplane is required for installation?
A
No additional cable is needed if installing in an HP SAS backplane-equipped chassis; simply slide the drive into an available 3.5-inch bay.
Q
How do I install the HP 737261-B21 in my server?
A
Power down the host if not hot-swappable, insert the drive into an empty 3.5-inch LFF bay or hot-swap cage, then secure latches or screws as needed.
Q
Does HP provide a warranty for this HDD?
A
Yes, HP includes a one-year limited warranty with optional extensions up to five years via Care Pack services.
Q
How does this drive differ from a 10K RPM SAS HDD?
A
At 15K RPM, the 737261-B21 offers up to 50% faster seek times and higher IOPS compared to 10K RPM models, ideal for latency-sensitive applications.
Q
Can I mix the 737261-B21 with other spindle speeds in a RAID array?
A
HP recommends uniform spindle speeds in RAID arrays to maintain consistent performance and avoid bottlenecks.
Q
What maintenance is required for the HP 737261-B21?
A
Regular monitoring via HP Array Configuration Utility and firmware updates through HP Service Pack for ProLiant (SPP) ensure optimal performance.
Q
Where can I purchase genuine HP 737261-B21 drives?
A
Authorized HP resellers, the HP official online store, and select enterprise hardware distributors stock this genuine HP part.
