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NVMe RI SSD offers excellent low-latency reads.
877988-B21
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HPE 4TB NVMe x4 RI SFF SCN DS SSD
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877988-B21
- Description:
- HPE 4TB NVMe x4 RI SFF SCN DS SSD
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877988-B21 Overview
877988-B21 is a 4 TB, 3.5-inch HDD with a SATA III interface, spinning at 7200 RPM and equipped with a 128 MB cache. It is engineered for high performance and reliability with a robust workload rating of 180 TB/yr, an MTBF of 1,000,000 hours, and rated for demanding operational environments.
Designed for use in desktops, servers, NAS, surveillance systems, and enterprise storage solutions, 877988-B21 features efficient power consumption at 8 Watts (read/write) and 6 Watts (idle) along with built-in vibration protection. Its precision dimensions—1.03 inches in height, 5.79 inches in width, and 4.00 inches in depth—and a weight of 2.9 lbs further ensure compatibility in multi-bay configurations and diverse computing setups.
877988-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 877988-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
877988-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)
- 6 Watts
- Encryption Support
- No
- Helium Sealed
- No
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- N/A
- Operating Temperature
- 5–60°C
- Product Name
- 877988-B21 4TB Enterprise SATA III HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 2.9 lbs
877988-B21 Use Case
Enterprise OLTP Database Acceleration with 877988-B21 HPE 4TB NVMe x4 SSD
In mission-critical SQL Server and Oracle OLTP deployments on HPE ProLiant servers, the 877988-B21 HPE 4TB NVMe x4 RI SFF SCN DS SSD delivers sub-100 µs latency and up to 250 K random read IOPS. This high-throughput, low-latency storage accelerates transaction processing by up to 60 %, reduces I/O bottlenecks, and consolidates multiple database tiers onto fewer drives, yielding faster queries, improved SLA compliance, and lower TCO.
VDI Boot Storm Mitigation in HPE Synergy Environments
In large-scale virtual desktop infrastructure (VDI) rollouts using HPE Synergy or ProLiant servers, the 4 TB NVMe x4 SSD (877988-B21) cuts boot-storm I/O contention by 80 %, enabling hundreds of simultaneous user logins under 10 seconds. By delivering sustained 3 GB/s throughput and 5 000 TBW endurance, it increases VM density per server, streamlines desktop management, and enhances end-user experience with consistent, predictable performance.
AI/ML Training Data Pipeline Optimization
For AI/ML model training and real-time inference on HPE Apollo or ProLiant clusters, the 877988-B21 HPE 4 TB NVMe x4 SSD provides high-bandwidth sequential reads of up to 3.2 GB/s and robust random IOPS for iterative data access. This SSD minimizes data-loading delays, accelerates feature extraction by over 50 %, and supports sustained workloads with enterprise-grade reliability, enabling faster model convergence, reduced training cycles, and quicker time-to-insight.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 877988-B21 |  875317-B21 |  781516-B21 |  P19913-B21 |  831737-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 / Enterprise Storage | 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 | 4 TB | 4 TB | 10 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 64 MB | 128 MB | 256 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 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 180 TB/yr | 180 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8 Watts | 7 Watts | 8.0 Watts |
| Power Consumption (Idle) | 6 Watts | 4 Watts | 5 Watts | 4 Watts | 5.0 Watts |
| Encryption Support | No | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | No | 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 | N/A | Dual Actuator | N/A | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–60°C | 5–55°C |
| Product Name | 877988-B21 4TB Enterprise SATA III HDD | 875317-B21 Enterprise SATA HDD | 781516-B21 4TB Enterprise HDD | P19913-B21 | 831737-B21 Enterprise Capacity 10TB SATA III 7200 RPM HDD |
| Height | 1.03 inches | 1.63 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 5.8 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 4.00 inches | 4.0 inches | 4.00 inches | 4.00 inches |
| Weight | 2.9 lbs | 1.55 lbs | 1.5 lbs | 2.0 lbs | 2.20 lbs |
Reviews & Ratings
S
Sumbul Hassan
5
Great for analytics and reporting systems.
R
Radoslav Marek
4
Stable NVMe performance under load.
W
Waqas Ali
5
Noticeable speed improvement after install.
J
James Thornton
5
High-performing NVMe SSD.
Questions & Answers
What is the storage capacity of the HPE 877988-B21 SSD?
The HPE 877988-B21 SSD delivers 4 TB of raw NVMe storage capacity, optimized for large-scale enterprise data workloads.
Which interface does the HPE 4TB NVMe x4 RI SFF SCN DS SSD use?
This drive uses a PCIe Gen3 x4 NVMe interface (U.2 SFF-2 form factor), providing low-latency, high-throughput connectivity to your HPE server.
What form factor is the HPE 877988-B21 SSD?
The SSD is built in a 2.5-inch small form factor (SFF) U.2 tray, supporting hot-plug insertion and removal in HPE ProLiant bays.
What sequential performance can I expect from this 4 TB NVMe SSD?
You can achieve up to 3,200 MB/s sequential read and up to 2,200 MB/s sequential write for high-bandwidth workloads.