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High speed SAS drive delivered quick response times.
737394-B21
HP 450GB 12G SAS 15K RPM LFF SC CONVERTER ENTERPRISE HDD
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737394-B21
- Description:
- HP 450GB 12G SAS 15K RPM LFF SC CONVERTER ENTERPRISE HDD
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737394-B21 Overview
737394-B21 is a high-performance HDD available in versatile form factors, including 3.5-inch and 2.5-inch options. It features a robust SATA III interface with a spindle speed of 7200 RPM, an impressive 8 TB storage capacity, and a 256 MB cache. Designed to handle demanding workloads with an annual rating of 550 TB/yr, it also boasts a high MTBF for reliable, continuous operation in critical applications.
Engineered for a range of use cases—from data centers and desktops to NAS and surveillance environments—737394-B21 provides exceptional power efficiency with 8 Watts for read/write and 5 Watts when idle. Its advanced features include a helium-sealed design, vibration protection, and dual actuator technology, ensuring optimal performance and reliability for enterprise-level storage solutions.
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737394-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
- 8 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 256 MB
- Average Latency
- 4.17 ms
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 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
- 737394-B21 High Performance Enterprise HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 1.65 lbs
737394-B21 Use Case
Low-Latency Trading Systems in Financial Services
In a global investment bank’s real-time trading platform, the HP 737394-B21 450GB 12G SAS 15K RPM LFF SC Converter Enterprise HDD delivers sub-millisecond I/O latency and sustained 1,200 MB/s throughput for mission-critical databases. Benefit: Accelerates trade execution, ensures regulatory SLA compliance, and maximizes revenue in high-frequency environments.
High-Density Virtualization in Enterprise Data Centers
Deploy the HP 737394-B21 450GB 12G SAS 15K RPM LFF SC Converter Enterprise HDD in blade and rack servers running hundreds of virtual desktops. Benefit: Eliminates storage bottlenecks with consistent IOPS, enhances end-user experience, and lowers total cost of ownership by consolidating workloads on fewer high-performance drives.
Big Data Analytics and HPC Workloads
Integrate the HP 737394-B21 450GB 12G SAS 15K RPM LFF SC Converter Enterprise HDD into Hadoop clusters and parallel computing arrays to handle large-scale sequential reads/writes under heavy loads. Benefit: Reduces analytics job runtimes, improves time-to-insight for data science, and boosts cluster efficiency for scientific modeling and simulation.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 737394-B21 |  857644-B21 |  877748-B21 |  872346-B21 |  833926-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| 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 | 8 TB | 4 TB | 4 TB | 8 TB | 10 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | 4.17 ms | N/A | N/A | 8.5 ms | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 W | 8 Watts | 8.5 Watts | 8.5 Watts |
| Power Consumption (Idle) | 5 Watts | 5 W | 5 Watts | 5.0 Watts | 6.5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | 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 | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Rotational Vibration Sensors |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | 737394-B21 High Performance Enterprise HDD | 857644-B21 | 877748-B21 High Performance Enterprise HDD | 872346-B21 Enterprise Helium-Sealed HDD | HGST Ultrastar 10TB Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 4.00 inches | 5.8 inches | 5.79 inches | 4.00 inches |
| Depth | 4.00 inches | 5.78 inches | 4.0 inches | 4.00 inches | 5.78 inches |
| Weight | 1.65 lbs | 1.20 lbs | 1.5 lbs | 2.20 lbs | 1.90 lbs |
Reviews & Ratings
A
Adeel Rasheed
4
Excellent for transactional systems.
A
Anton Smirnov
4
Reliable under heavy load.
M
Mansoor Ali
5
Strong enterprise performance.
L
Lars Ekholm
5
Consistent and fast.
Questions & Answers
What is the capacity and interface of the HP 737394-B21 HDD?
The HP 737394-B21 delivers 450 GB of usable storage over a 12 Gb/s SAS interface, ensuring high-throughput data transfers in enterprise environments.
What spindle speed does the HP 737394-B21 drive use?
This enterprise HDD spins at 15,000 RPM, delivering low latency and high IOPS for mission-critical applications.
Is the HP 450 GB 12G SAS 15K RPM LFF drive compatible with ProLiant servers?
Yes. The 737394-B21 is certified for HP ProLiant Gen8, Gen9 and later servers with 12 Gb/s SAS controllers.
How do I install the HP 450 GB 12G SAS drive in my server?
Slide the drive into an available LFF bay, lock the sled latch, then verify recognition in your server’s array controller or BIOS.
Does the HP 737394-B21 support hot-swapping?
Yes. It is fully hot-swap capable, allowing drive replacement without powering down the server.
Can I use the 450 GB SAS 15K drive in RAID configurations?
Absolutely. It supports RAID 0, 1, 5, 6, 10 and other HP Smart Array levels for data protection and performance.
What form factor does the HP 737394-B21 use?
It’s a Large Form Factor (3.5”) enterprise drive optimized for density and airflow in rack-mount enclosures.
What is the average latency of this 15K RPM SAS drive?
With a 15,000 RPM spindle speed, its average rotational latency is 2 ms, enabling rapid data access.
What is the MTBF rating for the HP 450 GB 12G SAS drive?
The 737394-B21 is rated at 1.6 million hours MTBF, ensuring enterprise-grade reliability.
Which workloads is the HP 737394-B21 optimized for?
This drive is ideal for OLTP databases, virtual machine storage and I/O-intensive analytics.
What power consumption can I expect from this enterprise HDD?
Typical active power draw is 9 W, with 5 W in idle mode, minimizing data-center energy costs.
What warranty covers the HP 737394-B21 450 GB SAS drive?
HP provides a standard three-year limited warranty with optional service upgrades for on-site support.
Does the 737394-B21 include a drive caddy or tray?
The HDD ships as a standalone module; please purchase the compatible HP LFF drive caddy separately.
How does a 15K RPM SAS drive improve server performance?
Higher spindle speed reduces seek and rotational latency, boosting IOPS and transactional throughput.
Can I directly replace a failed enterprise drive with the HP 737394-B21?
Yes. The 737394-B21 is a drop-in replacement for any HP 3.5″ 12 Gb/s 15K SAS slot-compatible drive.
Where can I purchase genuine HP 737394-B21 replacement drives?
Authorized HP resellers, the HP Parts Store and certified channel partners stock SKU 737394-B21.