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Mixed use SSD balanced performance and endurance well.
877784-B21
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.
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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
- Weight
- 2.2 lbs
- Form Factor
- 3.5-inch
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Average Latency
- N/A
- Power Consumption (Read/Write)
- 8 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Operating Temperature
- 5–55°C
- 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
- Width
- 5.79 inches
- Power Consumption (Idle)
- 4 Watts
- Depth
- 8.74 inches
- Product Name
- 877784-B21 Enterprise Performance HDD
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.
Does the HP 877784-B21 SSD support hot-swap operations?
Yes. This 2.5-inch SATA SSD is hot-plug and hot-swap capable when installed in a compatible backplane or drive bay.
What is the mean time between failures (MTBF) rating?
The HP 877784-B21 SSD is rated for an MTBF of 2 million hours, ensuring high reliability in enterprise environments.
What endurance level does the 960 GB SATA SSD provide?
This SSD delivers 1 full drive write per day (DWPD) endurance over a 3-year service life, suitable for mixed read/write workloads.
Which firmware features are included with this HP SSD?
It ships with HP’s Data Services (DS) firmware, offering enhanced error correction, wear leveling, power-loss protection and TRIM support.
What are the physical dimensions and weight of the 877784-B21 SSD?
Dimensions: 70 mm (W) × 100 mm (L) × 7 mm (H); weight: approximately 66 g, fitting standard 2.5-inch drive bays.
Which operating systems are compatible with this SATA 6 Gb/s SSD?
The SSD is OS-agnostic; standard SATA AHCI drivers enable compatibility with Windows, Linux, VMware ESXi and most Unix distributions.
How do I update or flash the firmware on the HP 877784-B21 SSD?
Download the latest DS firmware from the HP Support website and use HP’s SSD utilities or Smart Component Tool to apply updates.
What is the typical power consumption of the 960 GB SATA SSD?
Operational power draw is approximately 3 W (active) and 0.6 W (idle), optimizing data‐center energy efficiency.
Can I use this SSD in RAID configurations?
Yes. The HP 877784-B21 SSD is fully compatible with hardware RAID controllers supporting SATA 6 Gb/s for RAID 0, 1, 5, 6, 10 and higher.
How can I securely erase data on the HP 960 GB SSD?
Use the built-in Secure Erase command via your server’s BIOS utility or an SSD management tool to perform a cryptographic wipe and restore factory state.
What are the primary use cases for the HP 960 GB SATA SSD?
Ideal for boot volumes, mixed workload databases, virtualization and read-intensive applications requiring low latency and high reliability.
How does the HP 877784-B21 SSD compare to traditional HDDs?
Compared to 10K/15K RPM HDDs, this SSD delivers 5–10× lower latency, up to 8× higher IOPS and significantly reduced power and cooling demands.