United States$5,000,000+
Inventory Delivered By
O
Oliver Grant
5
High-capacity PCIe RI card with consistent reads.
877831-B21
HPE 4TB PCIe x4 RI HH DS Card
FEATURED DEAL
Name:
877831-B21
- Description:
- HPE 4TB PCIe x4 RI HH DS Card
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
877831-B21 Overview
877831-B21 is a high-performance HDD engineered for reliability and continuous operation. This drive features a 3.5-inch form factor with a SATA III interface and a robust 7200 RPM spindle speed that supports a storage capacity of 4 TB. It is equipped with a 128 MB buffer, is rated for an annual workload of 180 TB/yr, and boasts an MTBF of 1,200,000 hours, ensuring dependable data storage for demanding environments.
877831-B21 is designed for versatile usage across desktop, server, NAS, and surveillance applications. It maintains optimized power consumption with a read/write usage of 6.8 Watts and an idle consumption of 4.5 Watts, while advanced features such as helium-sealed construction, vibration protection, and dual actuator technology enhance its performance in multi-bay and continuous operation scenarios. Common use cases include data centers, enterprise desktops, NAS storage systems, and surveillance solutions.
877831-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 877831-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
877831-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 210 MB/s
- Annual Workload Rating
- 180 TB/yr
- Power Consumption (Read/Write)
- 6.8 Watts
- Power Consumption (Idle)
- 4.5 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Product Name
- 877831-B21 4TB Enterprise SATA HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 8.10 inches
- Weight
- 1.2 lbs
877831-B21 Use Case
High-Throughput OLTP Database Acceleration
In a global retail environment running Oracle or SQL Server on HPE ProLiant servers, the 877831-B21 HPE 4TB PCIe x4 RI HH DS Card delivers sub-millisecond latency and 500K+ IOPS for read-intensive workloads. By offloading hot data to NVMe flash, organizations gain 60% faster query response, 45% higher transaction throughput and consistent peak-period performance—driving real-time customer experiences and maximizing ROI on database infrastructure.
VDI Boot-Storm Optimization for Enterprise Desktops
During morning log-on surges in Citrix or VMware Horizon deployments, the 877831-B21 HPE 4TB PCIe x4 RI HH DS Card caches OS and application images directly on HPE ProLiant hosts. This accelerates simultaneous desktop boots by 65%, reduces network traffic by 50% and virtually eliminates IO bottlenecks. End users enjoy near-instant launch times while IT teams lower storage contention and TCO.
Real-Time Big Data Analytics and AI Model Training
Data science teams processing streaming IoT or clickstream data on HPE Apollo or ProLiant servers leverage the 877831-B21 HPE 4TB PCIe x4 RI HH DS Card as a high-speed scratch tier for Apache Spark, Kafka and TensorFlow pipelines. Delivering sustained throughput above 3 GB/s, it cuts ETL and model-training runtimes by up to 40%, enabling faster insights, shorter development cycles and competitive advantage in AI-driven markets.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 877831-B21 |  Q2P85A |  765034-B21 |  868830-B21 |  791034-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 | SAS 12Gb/s | 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 | 14 TB | 10 TB | 8 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 | N/A |
| Data Transfer Rate | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 6.8 Watts | 8.5 Watts | 8W | 7.8 Watts | 8 Watts |
| Power Consumption (Idle) | 4.5 Watts | 6.5 Watts | 6W | 5.2 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | No | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | No |
| 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 | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 877831-B21 4TB Enterprise SATA HDD | Q2P85A Enterprise Helium-Sealed HDD | 765034-B21 10TB Enterprise HDD | 868830-B21 Enterprise HDD | 791034-B21 Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1 in | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 4 inches | 4 in | 5.79 inches | 4.01 inches |
| Depth | 8.10 inches | 5.79 inches | 5.8 in | 4 inches | 5.79 inches |
| Weight | 1.2 lbs | 1.8 lbs | 1.8 lbs | 2.1 lbs | 2.1 lbs |
Reviews & Ratings
Z
Zara Nadeem
4
Great for analytics workloads. No issues so far.
T
Tomasz Kowalczyk
5
Reliable HH card with predictable performance.
U
Usman Latif
4
Easy deployment and stable throughput.
N
Neil Robertson
5
Delivers solid PCIe read acceleration.
Questions & Answers
What is the HPE 877831-B21 4TB PCIe x4 RI HH DS Card?
The HPE 877831-B21 is a 4TB NVMe solid-state drive on a PCIe Gen3 x4 riser card in half-height, half-length form factor designed for HPE ProLiant servers.
What storage capacity does the 877831-B21 card offer?
It provides 4TB of high-performance NVMe storage, ideal for data-intensive applications and caching.
What interface and form factor does this card use?
It uses a PCIe Gen3 x4 interface and fits HPE riser slots in half-height, half-length (HH-HL) server bays.
Which HPE ProLiant servers are compatible with SKU 877831-B21?
The card is validated for HPE ProLiant Gen9, Gen10, and select Gen11 DL and ML series servers with available PCIe riser slots.
What performance can I expect from the 4TB PCIe x4 RI HH DS Card?
It delivers up to 3.2 GB/s sequential read and write throughput, with sub-millisecond NVMe latency for demanding workloads.
What typical workloads benefit from this NVMe riser card?
Ideal for virtualization, database caching, analytics, and high-throughput transaction systems requiring low latency.
How do I install the 877831-B21 card in my server?
Power down the server, insert the card into an available half-height PCIe riser slot, secure the bracket, and update firmware in the BIOS.
Which operating systems support this HPE NVMe card?
It is certified for HPE-supported Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, and other NVMe-capable platforms.
Does the card include any data protection features?
Yes, it offers enterprise-grade power-loss protection and end-to-end data path integrity to safeguard against unexpected power failures.
What endurance rating does the 4TB SSD provide?
The drive is rated for enterprise workload endurance, typically supporting over 1 Drive Write Per Day (DWPD) for three years.
Is firmware management required for this PCIe NVMe card?
HPE Smart Storage Administrator automatically discovers and updates the card’s firmware, ensuring compatibility and performance.
Can I mix this card with other HPE storage devices in the same server?
Yes; it can coexist with HPE SAS/SATA drives and other NVMe devices, managed collectively via the HPE Smart Array controller.
What warranty covers the HPE 877831-B21 card?
It comes with HPE’s standard 3-year limited warranty, including global support and next-business-day parts replacement.
What are the physical dimensions of this riser card?
The card measures 168.3 mm in length, 68.9 mm in height, and occupies a single half-height, half-length PCIe slot.
How does this card improve server storage density?
By mounting NVMe storage on a PCIe riser, it frees front bay slots and increases total internal bandwidth without consuming drive bays.
Where can I purchase genuine HPE 877831-B21 cards?
Order through HPE’s authorized resellers, distribution partners, or the HPE Store to ensure authentic parts and full warranty coverage.