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Fast SAS drive suitable for transactional workloads.
846524-B21
HP 1TB 3.5-INCH LFF SAS 12GB/S 7.2K RPM 512N MDL DS HOT-PLUG...
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846524-B21
HP 1TB 3.5-INCH LFF SAS 12GB/S 7.2K RPM 512N MDL DS HOT-PLUG...
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846524-B21 is a high-performance HDD designed in a 3.5-inch form factor and built with a SATA III interface. It delivers a reliable 7200 RPM spindle speed, 4 TB of storage capacity, and a 256 MB cache, paired with an impressive MTBF of 2,000,000 hours and a rated reliability designed for continuous operation. This drive is engineered to handle heavy workloads while maintaining optimal performance in various environments.
846524-B21 offers excellent power efficiency with a read/write consumption of 8 W and idle consumption of 5 W. Featuring advanced capabilities such as helium-sealed construction, integrated vibration protection, and dual actuator technology, it is ideally suited for data centers, desktop systems, NAS devices, and surveillance applications where dependable, high-volume storage is critical.
846524-B21 price is $169.55, a 60% saving from the Hpe list price of $423.88. 846524-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 846524-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
In a global financial services firm running high-volume SQL and Oracle workloads, the 846524-B21-HP 1TB 3.5-inch LFF SAS 12 Gb/s 7.2K RPM hot-plug HDD delivers low-latency, consistent I/O for transaction processing. By integrating these drives into HP ProLiant DL380 Gen10 servers, IT teams achieve predictable sub-5 ms response times and 24/7 uptime, improving customer satisfaction and reducing costly database locks.
An e-commerce retailer consolidates hundreds of virtual machines on an HPE Synergy platform using 846524-B21-HP 1TB SAS hot-plug HDDs to separate cold and warm VM workloads. The 12 Gb/s interface maximizes throughput for non-critical VMs, freeing SSD capacity for performance-sensitive applications and lowering infrastructure cost by 30% while sustaining enterprise-grade reliability.
A healthcare provider implements an on-premise backup cluster with HPE DL360 Gen10 servers populated with 846524-B21-HP 1TB SAS 7.2K RPM HDDs for daily imaging and long-term retention. The hot-plug design ensures rapid drive replacement, and 512e sector formatting boosts sequential write speeds, enabling 100 TB of compliant, redundant backups with 99.9% data availability and simplified regulatory audits.
To get the detailed certification, please go to the Compliance Center.
| 846524-B21 |  819201-B21 |  K2P87B |  793665-B21 |  861691-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 | Enterprise Storage | Desktop / Server / NAS / Surveillance | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SAS 12Gb/s | 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 | 4 TB | 12 TB | 10 TB | 4 TB | 4 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 | 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 | 300 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 W | 9.0 Watts | 9 Watts | 9.0 Watts | 8 Watts |
| Power Consumption (Idle) | 5 W | 6.0 Watts | 7 Watts | 5.0 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | No | 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 | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 846524-B21 Enterprise HDD | Seagate Exos Enterprise 12TB 819201-B21 SAS HDD | K2P87B | 793665-B21 High Performance Enterprise HDD | 861691-B21 Enterprise HDD |
| Height | 1 in | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 |
| Width | 5.79 in | 5.79 inches | 5.78 inches | 5.79 inches | 5.79 |
| Depth | 4 in | 4.02 inches | 4.00 inches | 4.00 inches | 4.0 |
| Weight | 2.0 lbs | 3.3 lbs | 1.8 lbs | 1.65 lbs | 1.8 |
Fast SAS drive suitable for transactional workloads.
Low latency and consistent IOPS.
OEM drive ensured stability.
Good choice for performance tiers.
Strong enterprise disk.
The HP 846524-B21 offers 1 TB of raw storage capacity, ideal for data-intensive applications.
This drive uses a 12 Gb/s SAS interface, delivering high-throughput data transfer and enterprise-class reliability.
It is a 3.5-inch large form factor (LFF) HDD, designed for compatible HP ProLiant and Integrity server bays.
The drive spins at 7,200 RPM, balancing performance and energy efficiency for mixed-workload environments.