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Mixed use SSD balanced performance and endurance well.
877784-B21
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KIT HP 960GB SATA 6G MU SFF 2.5 IN SC DS FIRMWARE SSD
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877784-B21
- Description:
- KIT HP 960GB SATA 6G MU SFF 2.5 IN SC DS FIRMWARE SSD
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- Hpe
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877784-B21 Overview
877784-B21 is a high-performance HDD engineered for demanding environments, offering a 3.5-inch form factor paired with a SATA III interface to deliver reliable data storage. With a robust 4 TB capacity, a 7200 RPM spindle speed, and a 256 MB cache, this drive supports continuous operation with an impressive MTBF of 1,200,000 hours and is rated for 550 TB/yr workload, making it ideal for enterprise server, desktop, NAS, and surveillance applications.
Designed with advanced features such as a helium-sealed architecture, vibration protection, and dual actuator technology, 877784-B21 ensures optimal power consumption of 8 Watts during read/write operations and 4 Watts at idle. Its superior reliability and versatile drive usage class make it a preferred choice for data centers and high-demand storage environments.
877784-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 877784-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
877784-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)
- 256 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 4 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–55°C
- Product Name
- 877784-B21 Enterprise Performance HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 8.74 inches
- Weight
- 2.2 lbs
877784-B21 Use Case
Enterprise Database Acceleration with 877784-B21-KIT HP 960GB SATA 6G MU SFF SSD
In a global retail chain’s OLTP environment, the 877784-B21-KIT HP 960GB SATA 6G MU SFF 2.5 IN SC DS FIRMWARE SSD accelerates SQL query response times by 60%, enabling real-time inventory updates and dynamic pricing. Outcome: sub-5ms latency, 30% uplift in transaction throughput, and improved decision accuracy for supply-chain managers.
Virtualized Server Optimization in Data Centers Using HP 877784-B21-KIT SSD
A financial services firm deploys the 877784-B21-KIT HP 960GB SATA 6G MU SFF SSD across VMware ESXi hosts to boost virtual machine I/O performance. Outcome: 45% reduction in boot times, support for 25% more concurrent VMs per server, and consistent sub-1ms read/write latency for mission-critical applications.
Branch Office File Service & Backup Acceleration with HP 877784-B21-KIT SSD
An enterprise IT team installs the 877784-B21-KIT HP 960GB SATA 6G MU SFF SSD in remote office NAS appliances to speed up file access and on-site backups. Outcome: 50% faster daily backup windows, near-instant file retrieval for end users, and reduced WAN bandwidth usage through local deduplication.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 877784-B21 |  P07924-B21 |  878566-B21 |  872491-B21 |  H6G53A | |
|---|---|---|---|---|---|
| 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 | Desktop / Server / NAS / Surveillance | 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 | 6 TB | 4 TB | 8 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 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 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 | 10 Watts | 7 W | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 4 W | 4 Watts | 4 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | SED | 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 | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 877784-B21 Enterprise Performance HDD | P07924-B21 Enterprise He-Sealed HDD | 878566-B21 Enterprise HDD | 872491-B21 Enterprise HDD | H6G53A Enterprise Helium-Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 4 inches | 5.79 inches | 4.0 inches |
| Depth | 8.74 inches | 4.00 inches | 5.79 inches | 4.01 inches | 5.79 inches |
| Weight | 2.2 lbs | 2.2 lbs | 2.2 lbs | 2.2 lbs | 1.6 lbs |
Reviews & Ratings
S
Sohail Anwar
5
Reliable under mixed workloads.
B
Bruno Costa
5
OEM firmware worked perfectly.
A
Asad Mehmood
5
Good value enterprise SSD.
M
Matti Korpi
5
Stable and predictable.
Questions & Answers
What is the capacity and interface of HP SKU 877784-B21 SSD?
The HP 877784-B21 SSD offers 960 GB of usable storage via a SATA 6 Gb/s interface in a standard 2.5-inch SFF form factor.
Which HP servers and workstations support the 877784-B21 960 GB SATA SSD?
This SSD is validated for HP ProLiant Gen8/Gen9 servers, HP Z-series workstations and any system supporting 2.5-inch SATA 6 Gb/s drives.
What are the sequential performance specifications of this 960 GB SSD?
The drive delivers up to 560 MB/s sequential read and 520 MB/s sequential write throughput under typical enterprise workloads.
How do I install the HP 877784-B21 SSD in my server?
Slide the SSD into an available 2.5-inch hot-swap bay or caddy, secure the tray, then connect power and SATA cables following your server’s hardware manual.