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SAS RI SSD with consistent read throughput.
816568-B21
HP 960GB 12G SAS RI-3 SFF 2.5 IN SC SSD
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816568-B21
- Description:
- HP 960GB 12G SAS RI-3 SFF 2.5 IN SC SSD
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- Brand:
- Hpe
- Condition:
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816568-B21 Overview
816568-B21 is a high-performance HDD designed in a 3.5-inch form factor with a SATA III interface and a 7200 RPM spindle speed. It offers a 4 TB storage capacity paired with a 128 MB cache, an annual workload rating of 300 TB/yr, and is engineered for continuous, reliable operation with an MTBF of 2,000,000 hours and a high rated operational reliability.
816568-B21 features advanced enhancements including a helium-sealed design, vibration protection, and dual actuators, making it well-suited for data centers, desktops, NAS, and surveillance applications. Its efficient power consumption of 7.0 Watts when reading/writing and 4.0 Watts on idle further reinforces its optimal performance and durability in demanding environments.
816568-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 816568-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
816568-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
- 300 TB/yr
- Power Consumption (Read/Write)
- 7.0 Watts
- Power Consumption (Idle)
- 4.0 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
- 816568-B21
- Height
- 1.03 inches
- Width
- 4 inches
- Depth
- 5.79 inches
- Weight
- 2.1 lbs
816568-B21 Use Case
Enterprise Database Acceleration with HP 816568-B21 960GB 12G SAS SSD
In large-scale OLTP deployments, IT teams deploy the HP 816568-B21 960GB 12G SAS RI-3 SFF 2.5-in SC SSD to offload critical database volumes. This SSD delivers sub-1 ms read/write latency and 200K+ IOPS, enabling real-time transaction processing, reducing query response times by up to 60%, and ensuring predictable performance under peak loads.
Virtual Desktop Infrastructure (VDI) Optimization Using HP 960GB 12G SAS SC SSD
A global enterprise rolls out 5,000 concurrent VDI sessions on HP servers equipped with the 816568-B21 SSD. The drive’s sustained 1.8 GB/s throughput and high endurance cut boot-storm delays by 75%, deliver consistent desktop responsiveness, and lower overall storage TCO through 10-drive consolidation ratios.
Real-Time Analytics & Big Data Processing with HP 12G SAS RI-3 SSD
A financial services firm powers its in-memory analytics cluster on HPE ProLiant servers using 960GB 12G SAS RI-3 SFF SSDs (816568-B21). The drives sustain mixed-read/write workloads at enterprise-grade reliability (2 M hours MTBF), accelerating data ingest and processing pipelines by 50% for timely risk modeling and compliance reporting.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 816568-B21 |  652564-B21 |  872481-B21 |  P04474-B21 |  785069-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | 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 | 4 TB | 8 TB | 8 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | 4.16 ms |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 7.0 Watts | 9 Watts | 8 Watts | 7 Watts | 8.5 Watts |
| Power Consumption (Idle) | 4.0 Watts | 6 Watts | 4 Watts | 5 Watts | 5.0 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 | 5–60°C | 5–55°C |
| Product Name | 816568-B21 | 652564-B21 Enterprise HDD | 872481-B21 | P04474-B21 Enterprise HDD | 785069-B21 Enterprise Helium Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4 inches | 4.00 inches | 4.00 inches | 4.0 inches | 4.00 inches |
| Depth | 5.79 inches | 5.79 inches | 5.79 inches | 5.8 inches | 5.79 inches |
| Weight | 2.1 lbs | 2.2 lbs | 1.2 lbs | 2.1 lbs | 1.8 lbs |
Reviews & Ratings
N
Naila Pervez
5
Smooth integration and stable performance.
R
Renee Laurent
5
Reliable for read-heavy applications.
Z
Zain Abbas
5
No issues during peak loads.
H
Harvey Coleman
4
Meets enterprise RI expectations.
Questions & Answers
What is the storage capacity of the HP 816568-B21 SSD?
The HP 816568-B21 SSD offers 960 GB of usable storage capacity.
Which form factor does the HP 816568-B21 SSD use?
This SSD uses a Small Form Factor (SFF) 2.5-inch design.
What interface does the HP 816568-B21 SSD support?
It supports a 12 Gb/s SAS interface for high-speed connectivity.
What does the RI-3 classification mean?
RI-3 denotes a third-generation, read-intensive SSD optimized for workloads with high read-to-write ratios.
What are the sequential read and write speeds?
The drive delivers up to 526 MB/s sequential read throughput and up to 479 MB/s sequential write throughput.
What random IOPS performance can I expect?
It achieves up to 85,000 random read IOPS and up to 22,000 random write IOPS.
What is the endurance rating of this SSD?
The HP 816568-B21 is rated for 0.3 Drive Writes per Day (DWPD) over a five-year period.
Which enterprise workloads is this SSD best suited for?
It excels in read-intensive applications such as virtualization, database querying, boot volumes, and caching.
Which HPE systems is the 816568-B21 SSD compatible with?
It is fully compatible with HPE ProLiant Gen9/Gen10 servers, Apollo systems, MSA arrays, and supported SAS controllers.
What warranty does HP provide for this SSD?
HP offers a three-year limited warranty, with optional HPE Foundation Care support contracts available.
What is the mean time between failures (MTBF)?
The drive is designed for an MTBF of up to 2 million hours.
Is the HP 816568-B21 SSD hot-pluggable?
Yes, it supports hot-plug insertion and removal in compatible HPE drive bays.
Does this SSD include hardware-based encryption?
This model does not include built-in encryption; you must employ controller- or software-based encryption solutions.
How do I install the HP 816568-B21 SSD?
Simply slide it into a compatible hot-swap SAS bay; the system will auto-detect and configure the drive.
What is the typical power consumption of this SSD?
Power usage is approximately 3.5 W under active load and around 1.2 W when idle.
Do I need a specific SAS controller for this SSD?
Yes, it requires a 12 Gb/s SAS HBA or RAID controller that supports third-party enterprise SSDs.