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10K SAS drive delivers strong performance for its class.
432320-001
HP 146GB 10K 2.5 SAS SP HDD 431958-B21
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Name:
432320-001
- Description:
- HP 146GB 10K 2.5 SAS SP HDD 431958-B21
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432320-001 Overview
432320-001 is an enterprise-grade HDD designed for high-demand environments, featuring a 3.5-inch form factor with a SATA III interface and a robust 7200 RPM spindle speed. With an 8 TB capacity paired with a 256 MB cache and an annual workload rating of 550 TB/yr, this drive delivers consistent performance and proven reliability, underscored by a high MTBF and 24/7 rated operational hours.
432320-001 also offers optimized power efficiency with a read/write consumption of 8 Watts and an idle consumption of 5 Watts. Advanced features such as helium sealing, vibration protection, and dual actuator technology enhance its performance, making it ideal for data centers, enterprise servers, desktop systems, NAS solutions, and surveillance applications.
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432320-001 Specifications
- Width
- 4.00 inches
- Form Factor
- 3.5-inch
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Spindle Speed (RPM)
- 7200 RPM
- Average Latency
- N/A
- 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
- Height
- 1.03 inches
- Cache (Buffer Size)
- 256 MB
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Depth
- 5.79 inches
- Storage Capacity
- 8 TB
- Weight
- 1.80 lbs
- Product Name
- 432320-001 Enterprise Performance HDD
432320-001 Use Case
Accelerating VMware ESXi Virtual Hosts in Enterprise Data Centers
In a multi-tenant data center, IT teams integrate the HP 146GB 10K 2.5
Optimizing High-Transaction SQL Databases for Financial Services
A global banking firm deploys the 432320-001-HP 146GB 10K 2.5
Reliable Backup & Disaster Recovery in Remote Branch Offices
A nationwide retail chain equips its remote stores with HP ProLiant micro-tower servers populated with the HP 146GB 10K 2.5
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 432320-001 |  497730-001 |  M0F34AA |  M7S54AA |  N2N01AA | |
|---|---|---|---|---|---|
| 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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / NAS |
| Interface | SATA III | SATA III | SATA III / SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 2.5-inch / 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 4 TB | 8 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 128 MB | 256 MB | 256 MB | 128 MB |
| Average Latency | N/A | N/A | N/A | N/A | 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 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 300 TB/yr | 550 TB/yr | 180 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 7.5 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 4 Watts | 5 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | No | 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 | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–55°C | 5–60°C |
| Product Name | 432320-001 Enterprise Performance HDD | 497730-001 Enterprise HDD | M0F34AA High Performance HDD | M7S54AA | N2N01AA Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.0 inches | 1.03 inches |
| Width | 4.00 inches | 5.79 inches | 4.0 inches | 4.0 inches | 5.79 inches |
| Depth | 5.79 inches | 6.94 inches | 5.8 inches | 6.9 inches | 4.00 inches |
| Weight | 1.80 lbs | 2.2 lbs | 1.5 lbs | 2.5 lbs | 1.6 lbs |
Reviews & Ratings
H
Henry Walsh
4
Reliable for transactional workloads.
J
Julian Fox
5
Stable in RAID configuration.
M
Marcus Bennett
3
Enterprise quality disk.
E
Edward Hayes
4
Predictable latency.
Questions & Answers
What are the key specifications of the HP 146GB 10K 2.5″ SAS SP HDD (431958-B21)?
The HP 431958-B21 provides 146GB capacity, 10,000 RPM spindle speed, 2.5″ drive form factor, single-port 6 Gb/s SAS interface and 16 MB cache for enterprise storage performance.
Which HP ProLiant servers support the 431958-B21 146GB 10K SAS HDD?
This drive is compatible with HP ProLiant Gen8, Gen9 and Gen10 rack and blade servers featuring LFF/SFF bays that support 2.5″ single-port SAS hot-swap drives.
How do I install the HP 431958-B21 2.5″ SAS drive in my server?
Slide the drive into an available 2.5″ SAS bay until it clicks, then verify physical and logical recognition in the server BIOS or HPE Smart Storage Administrator.
Can the HP 146GB 10K SAS SP HDD be hot-swapped?
Yes, the HP 431958-B21 supports hot-swap operation, allowing removal and replacement without shutting down the host server.