United States$5,000,000+
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R
Ross McIntyre
5
Good capacity memory with strong stability.
838083-B21
HPE 32GB 2Rx4 PC4-2666V-R Smart Kit
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Name:
838083-B21
- Description:
- HPE 32GB 2Rx4 PC4-2666V-R Smart Kit
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838083-B21 Overview
838083-B21 is a DDR4 memory module packaged in a UDIMM form factor and engineered for desktop systems. It operates at a speed of 3200 MHz with a CAS latency of CL16, runs at 1.35V, and is available as a 16 GB module in a Single Channel kit configuration. This module is non-ECC and unbuffered, and it comes equipped with an integrated heatspreader.
838083-B21 is purpose-built for high-performance gaming, workstation, and server builds, ensuring reliable compatibility with modern desktop platforms. Enhancing its appeal further, it supports Intel XMP 2.0 for easy overclocking and delivers clean aesthetics by foregoing RGB lighting.
838083-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 838083-B21 for additional pricing. Browse the full Hpe Memory & Ram series or explore all Hpe products.
838083-B21 Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 16 GB
- Compatible Platforms
- Desktop
- Compatible Systems
- Workstation
- 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 12th Gen
- AMD Platform Support
- AMD Ryzen 5000
- Use Case
- Gaming
- Product Name
- 838083-B21 DDR4 16GB UDIMM
- Height
- 1.4 inches
- Width
- 5.3 inches
- Depth
- 0.2 inches
- Weight
- 0.3 lbs
838083-B21 Use Case
Virtual Desktop Infrastructure Optimization with HPE ProLiant and 838083-B21 32GB Smart Kits
A mid-sized financial services firm upgrades its HPE ProLiant DL380 Gen10 servers with HPE Smart Kit 838083-B21 (32GB 2Rx4 PC4-2666V-R ECC Registered DIMMs) to power a Citrix XenDesktop VDI environment. The memory boost drives a 30% increase in concurrent VM density, cuts user login latency by 40%, and lowers total cost of ownership via improved performance-per-watt.
In-Memory Analytics Acceleration on SAP HANA with HPE ProLiant and 838083-B21 Modules
A global retailer scales its SAP HANA in-memory data warehouse by installing HPE Smart Kit 838083-B21 (32GB DDR4-2666V-R ECC RDIMMs) in HPE ProLiant DL360 Gen10 servers. This upgrade delivers 50% faster complex query performance, real-time inventory insights, and 99.9% SLA compliance—empowering data-driven decisions and boosting customer satisfaction.
High-Performance Computing Throughput & Reliability on HPE Apollo with 838083-B21 Memory
An engineering research lab running CFD and FEA workloads on HPE Apollo 2000 series servers integrates HPE Smart Kit 838083-B21 (32GB 2Rx4 PC4-2666V-R ECC Registered DIMMs) to maximize node memory capacity. The result is 25% higher simulation throughput, robust ECC error protection, and consistent 24/7 reliability for mission-critical R&D compute tasks.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 838083-B21 |  845264-B21 |  838079-B21 |  876181-B21 |  862976-B21 | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 16 GB | 16 GB | 8 GB | 8 GB | 16 GB |
| Compatible Platforms | Desktop | Desktop | Desktop | Laptop | Desktop |
| Compatible Systems | Workstation | N/A | Workstation | N/A | Workstation |
| Form Factor | UDIMM | UDIMM | UDIMM | SODIMM | UDIMM |
| Kit Configuration | Single Channel | Dual Channel | Dual Channel | Single Channel | Dual Channel |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 2666 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 | CL19 | CL16 |
| Voltage | 1.35V | 1.35V | 1.35V | 1.2V | 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 | No | Intel XMP 2.0 |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | Yes | No | Yes |
| Intel Platform Support | Intel 12th Gen | Intel 12th Gen | Intel 12th Gen | N/A | Intel 12th Gen |
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 |
| Use Case | Gaming | Gaming | Workstation | General Use | Gaming |
| Product Name | 838083-B21 DDR4 16GB UDIMM | 845264-B21 DDR4 16GB Dual Channel Memory Module | 838079-B21 High Performance DDR4 Memory Module | 876181-B21 DDR4 SODIMM Memory Module | 862976-B21 16GB DDR4 UDIMM Memory Kit |
| Height | 1.4 inches | 1.4 inches | 1.2 inches | 0.19 inches | 1.2 inches |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | 2.66 inches | 5.3 inches |
| Depth | 0.2 inches | 0.5 inches | 0.5 inches | 1.18 inches | 0.5 inches |
| Weight | 0.3 lbs | 0.35 lbs | 0.3 lbs | 0.1 lbs | 0.2 lbs |
Reviews & Ratings
A
Alina Javed
4
Improved overall server responsiveness.
N
Nikolay Ivanov
5
No errors encountered.
H
Hammad Qureshi
3
Solid enterprise RAM.
C
Caroline Hughes
4
Works as advertised.
Questions & Answers
What is the HPE 32GB 2Rx4 PC4-2666V-R Smart Kit (SKU: 838083-B21)?
It is a 32 GB DDR4 registered DIMM (RDIMM) module running at 2,666 MT/s with ECC for HPE ProLiant servers.
Which HPE servers support the 838083-B21 Smart Kit?
This module is certified for HPE ProLiant Gen10 and Gen11 DL, ML and XL-series servers that accept DDR4 RDIMMs.
What memory type and form factor does this kit use?
The 838083-B21 is a 288-pin DDR4 RDIMM optimized for server motherboards requiring registered memory.
What does PC4-2666V-R mean for this memory kit?
PC4-2666V indicates DDR4 at 2,666 MT/s, and the “R” denotes registered (RDIMM) with ECC support.