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Trevor Mills
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Solid SATA MU SSD. Handles mixed workloads reliably.
877776-B21
HP 480GB SATA 6G MU SFF 2.5 IN SC DS FIRMWARE SSD
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877776-B21
- Description:
- HP 480GB SATA 6G MU SFF 2.5 IN SC DS FIRMWARE SSD
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- Hpe
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- Warranty:
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- List Price:
$919.59
- Price:
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877776-B21 Overview
877776-B21 is a high-performance HDD engineered with a 3.5-inch form factor and a SATA III interface to deliver reliable performance in demanding applications. Designed to support modern data storage needs, it operates at a spindle speed of 7200 RPM, offers a robust capacity of 4 TB, and is equipped with a 128 MB cache, ensuring smooth data handling for a wide range of environments.
877776-B21 meets rigorous enterprise standards with an annual workload rating of 180 TB/yr and a rated MTBF of 1,000,000 hours, which underscores its reliability for continuous operations. Its optimized power consumption, along with advanced features such as helium-sealing, integrated vibration protection, and dual actuator technology, makes it an excellent choice for data centers, desktops, NAS configurations, and surveillance setups.
877776-B21 price is $395.42, a 57% saving from the Hpe list price of $919.59. 877776-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 877776-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
877776-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
- 180 TB/yr
- 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
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–55°C
- Product Name
- 877776-B21 High Performance HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 2 lbs
877776-B21 Use Case
Enterprise OLTP Database Acceleration for Microsoft SQL Server
In a mid-sized financial services firm running Microsoft SQL Server on HP ProLiant DL360 rack servers, the HP 877776-B21 480GB SATA 6G MU SFF 2.5″ SC DS Firmware SSD delivers sustained 98K IOPS at sub-1ms latency. This high-endurance drive accelerates transactional queries by 45%, slashes report generation times by 60%, and drives down TCO through lower power draw and advanced wear-leveling.
VDI Boot and Login Storm Mitigation in VMware Horizon
A global enterprise with 500+ VMware Horizon virtual desktops uses the HP 877776-B21 480GB SATA 6G MU SFF 2.5″ SC DS Firmware SSD to accelerate OS boot and user-profile loading. During concurrent login spikes, the drive sustains 90K mixed IOPS, reducing boot times from 150 s to under 60 s and boosting end-user productivity by 35% while ensuring consistent performance under heavy load.
Real-Time Edge Data Logging and Analytics for Industrial IoT
In a manufacturing plant deploying edge servers to collect high-frequency sensor data, the HP 877776-B21 480GB SATA 6G MU SFF 2.5″ SC DS Firmware SSD provides enterprise-grade endurance (10 DWPD) and sustained write throughput of 500 MB/s. This SSD ensures 24/7 reliable data capture with zero packet loss, streamlines predictive-maintenance analytics, and reduces onsite hardware replacement by 40%.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 877776-B21 |  802586-B21 |  P04564-B21 |  Q2R41A |  652605-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 / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III / SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch / 2.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 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) | 128 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 250 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8.5 Watts | 8 Watts | 9 Watts | N/A |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 5 Watts | 5 Watts | N/A |
| Encryption Support | AES 256-bit | AES 256-bit | No | 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 | Dual Actuator |
| Operating Temperature | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 877776-B21 High Performance HDD | 802586-B21 Enterprise HDD | P04564-B21 High Performance Enterprise HDD | Q2R41A Enterprise HDD | 652605-B21 Enterprise Helium-Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 4.0 inches | 5.79 inches | 4.00 inches |
| Depth | 4.00 inches | 7.1 inches | 5.8 inches | 7.13 inches | 5.79 inches |
| Weight | 2 lbs | 3.3 lbs | 2.0 lbs | 2.2 lbs | 2.2 lbs |
Reviews & Ratings
A
Ali Jawad
4
No issues during deployment or daily operations.
N
Nadine Fischer
5
Consistent throughput and low latency.
S
Salman Arif
5
Good enterprise SSD for general use.
V
Victor Hammond
5
Stable and predictable performance.
Questions & Answers
What are the key specifications of the HP 480GB SATA 6G MU SFF 2.5-inch SSD (SKU: 877776-B21)?
Key specifications include 480 GB capacity, SATA III 6 Gb/s interface, 2.5″ small form factor, up to 550 MB/s sequential read and 520 MB/s sequential write, 80 000/20 000 4K random read/write IOPS, 3K program/erase cycle endurance and 1.6 million-hour MTBF.
Is the HP 877776-B21 SSD compatible with standard 2.5-inch SATA III ports?
Yes. The HP 877776-B21 is fully compatible with any industry-standard 2.5″ SATA III (6 Gb/s) port.
What sequential read and write speeds can I expect from this SSD?
You can expect up to 550 MB/s sequential read and up to 520 MB/s sequential write under optimal conditions.
What random IOPS performance does the HP 480GB SATA SSD deliver?
It delivers up to 80 000 4K random read IOPS and 20 000 4K random write IOPS at queue depth 32.
What is the endurance rating (TBW) of the HP 480GB SATA SSD?
This drive is rated for 200 TBW (terabytes written) over its service life.
Does the HP 480GB SSD support TRIM for garbage collection?
Yes. The SSD supports the SATA TRIM command, ensuring sustained performance and efficient garbage collection.
Is the HP 877776-B21 SSD hot-swappable?
Yes. It is designed for hot-plug operation in servers and storage arrays.
Which operating systems are supported by this HP SATA SSD?
Any operating system with native SATA support—such as Windows Server, Linux distributions and VMware ESXi—will recognize and utilize this SSD.
Can I use the HP 480GB SATA SSD in RAID configurations?
Yes. It is fully supported in hardware RAID arrays via HP Smart Array controllers and in software RAID setups.
Does the HP 480GB SATA SSD feature power-loss data protection?
Yes. It includes built-in power-loss protection capacitors to safeguard in-flight data during unexpected power failures.
What is the MTBF of the HP 877776-B21 SSD?
It has a Mean Time Between Failures (MTBF) rating of 1.6 million hours.
How do I install the HP 480GB SATA SSD in my HP server?
Install it in a 2.5″ hot-plug drive bay or caddy, secure it according to your server’s hardware guide and ensure the SATA controller driver is loaded.
Does the HP 480GB SATA SSD support hardware encryption?
No. This model does not include onboard encryption; you should implement OS-level or controller-level encryption if required.
What warranty coverage does HP provide for the 877776-B21 SSD?
HP backs this SSD with a three-year limited warranty, including access to HP support and firmware updates.
Is the HP 480GB SATA SSD backward compatible with SATA 3 Gb/s controllers?
Yes. It is backward compatible with SATA II (3 Gb/s) interfaces, though at reduced throughput.