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Reliable DDR4 memory for daily operations.
838081-B21
HPE 16GB 1Rx4 PC4-2666V-R Smart Kit
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838081-B21
- Description:
- HPE 16GB 1Rx4 PC4-2666V-R Smart Kit
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838081-B21 Overview
838081-B21 is a DDR4 computer memory module designed in a UDIMM form factor for desktop systems. It features a speed of 3200 MHz, a CAS latency of CL16, a voltage of 1.35V, and an 8 GB capacity configured as a single channel module. This product is non-ECC and unbuffered, making it ideal for reliable performance in gaming and workstation builds.
Engineered with a robust heatspreader for effective thermal management, 838081-B21 is optimized for high-performance applications. It supports Intel XMP 2.0, is compatible with Intel 10th Gen and AMD Ryzen 3000 platforms, and is purpose-built for enthusiasts looking for dependable performance in modern PC builds.
838081-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 838081-B21 for additional pricing. Browse the full Hpe Memory & Ram series or explore all Hpe products.
838081-B21 Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 8 GB
- Compatible Platforms
- Desktop
- Compatible Systems
- N/A
- Form Factor
- UDIMM
- Kit Configuration
- Single Channel
- Speed
- 3200 MHz
- Operating Temperature
- N/A
- Reliability Rating
- Standard
- CAS Latency (CL)
- CL16
- Voltage
- 1.35V
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- XMP Support
- Intel XMP 2.0
- RGB Lighting
- No
- Heatsink / Heatspreader
- Yes
- Intel Platform Support
- Intel 10th Gen
- AMD Platform Support
- AMD Ryzen 3000
- Use Case
- Gaming
- Product Name
- 838081-B21 DDR4 8GB UDIMM 3200MHz CL16 Memory Module
- Height
- 1.2 inches
- Width
- 5.3 inches
- Depth
- 0.5 inches
- Weight
- 0.3 lbs
838081-B21 Use Case
Scaling Enterprise Virtualization with 838081-B21 HPE 16GB 1Rx4 PC4-2666V-R Smart Kit
In a global finance firm running VMware vSphere on HPE ProLiant DL380 Gen10 servers, deploying the 838081-B21 HPE 16GB 1Rx4 PC4-2666V-R Smart Kit boosts memory capacity per host by 64 GB. This upgrade increases VM consolidation ratios by 25 %, reduces vMotion latency by 15 %, and maintains strict compliance SLAs. Benefit: higher VM density and predictable performance with error-correcting ECC Registered memory.
Accelerating Real-Time In-Memory Analytics with HPE Smart Kit
A retail analytics provider leverages SAP HANA on HPE Superdome Flex servers, integrating the 838081-B21 HPE 16GB 1Rx4 PC4-2666V-R Smart Kit to optimize DRAM bandwidth at 2 666 MT/s. This configuration cuts complex report generation times by 30 % and delivers sub-second dashboards during peak sales. Benefit: immediate business insights and ROI through low-latency, high-availability memory.
Boosting HPC Simulation Throughput in Engineering R&D
An automotive R&D center runs CFD and crash-simulation workloads on HPE Apollo 6500 Gen10 clusters. By installing multiple 838081-B21 HPE 16GB 1Rx4 PC4-2666V-R Smart Kits per node, the team achieves uniform memory interleaving and ECC-verified stability. Simulation runtimes drop by 20 %, enabling faster design iterations and on-time project delivery. Benefit: consistent high-performance computing with proven reliability.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 838081-B21 |  838089-B21 |  P10729-B21 |  P00920-B21 |  815102-B21 | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 8 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| Compatible Platforms | Desktop | Desktop | Desktop | Desktop | Desktop |
| Compatible Systems | N/A | N/A | N/A | N/A | Workstation |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Dual Channel | Single Channel | Single Channel |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Voltage | 1.35V | 1.35V | 1.35V | 1.35V | 1.35V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel 10th Gen | Intel 12th Gen | Intel 10th Gen | Intel 12th Gen | Intel 12th Gen |
| AMD Platform Support | AMD Ryzen 3000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 |
| Use Case | Gaming | Gaming | Gaming / Workstation | Gaming | Gaming |
| Product Name | 838081-B21 DDR4 8GB UDIMM 3200MHz CL16 Memory Module | 838089-B21 16GB DDR4 Desktop Memory Module | P10729-B21 DDR4 Desktop Memory Module | P00920-B21 | 815102-B21 DDR4 16GB UDIMM Memory Module |
| Height | 1.2 inches | 1.2 inches | 1.3 inches | 1.2 inches | 1.2 inches |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | 5.3 inches | 5.3 inches |
| Depth | 0.5 inches | 0.2 inches | 0.2 inches | 0.6 inches | 0.5 inches |
| Weight | 0.3 lbs | 0.15 lbs | 0.35 lbs | 0.2 lbs | 0.3 lbs |
Reviews & Ratings
S
Sana Gul
4
No issues after installation.
F
Filip Jankovic
5
Works well in mixed memory configurations.
W
Waleed Akram
3
Stable and dependable.
A
Anna Petrova
4
Good value.
Questions & Answers
What are the key specifications of the HPE 16GB 1Rx4 PC4-2666V-R Smart Kit (838081-B21)?
The HPE 838081-B21 Smart Kit offers a 16 GB DDR4 Registered DIMM (RDIMM), single-rank (1Rx4) configuration, PC4-2666V-R speed (2666 MT/s), ECC error correction, and a standard 1.2 V operating voltage.
Is the 838081-B21 kit part of HPE SmartMemory?
Yes. The 838081-B21 is HPE SmartMemory certified, ensuring advanced error handling, performance tuning, and full compatibility with HPE ProLiant and Synergy servers.
Which HPE servers support the 16GB 1Rx4 PC4-2666V-R Smart Kit?
This kit is validated for HPE ProLiant Gen9 and Gen10 rack, tower and blade servers, as well as HPE Synergy compute modules that accept DDR4 PC4-2666V-R RDIMMs.
How many 838081-B21 modules can I install per HPE server?
Most HPE ProLiant Gen10 servers support up to 24 DIMM slots per system; always consult your server’s QuickSpecs for maximum RDIMM population limits.