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838089-B21
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- HPE 16GB 2Rx8 PC4-2666V-R Smart Kit
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
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Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
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Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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838089-B21 Overview
838089-B21 is a high-performance DDR4 memory module in a UDIMM form factor designed for desktop builds. It runs at 3200 MHz with a CAS latency of CL16 and a voltage of 1.35V, providing a single-channel 16 GB kit without ECC support and unbuffered operation. The module comes equipped with an integrated heatspreader and is optimized for gaming and workstation performance.
838089-B21 is engineered for modern desktop compatibility, supporting both Intel 12th Gen and AMD Ryzen 5000 platforms. Its design emphasizes reliability and thermal efficiency while delivering the speed and low latency required for gaming and general workstation use, all without RGB lighting distractions.
What is the price of 838089-B21?
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Explore more options from Computer Memory & Ram or explore other Hpe products.
838089-B21 Specifications
| Product Type | Computer Memory |
| Memory Type | DDR4 |
| Capacity | 16 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 12th Gen |
| AMD Platform Support | AMD Ryzen 5000 |
| Use Case | Gaming |
| Product Name | 838089-B21 16GB DDR4 Desktop Memory Module |
| Height | 1.2 inches |
| Width | 5.3 inches |
| Depth | 0.2 inches |
| Weight | 0.15 lbs |
838089-B21 Use Case
Virtualization Performance Optimization in Enterprise Data Centers
In a global enterprise data center running HPE ProLiant DL380 Gen10 servers, IT architects install the HPE 16GB 2Rx8 PC4-2666V-R Smart Kit (838089-B21) to double VM density and reduce latency. This HPE-certified ECC RDIMM delivers 2666MT/s throughput and multi-rank reliability, enabling 20% faster boot times, 30% higher VM consolidation ratios, and enterprise-grade uptime for mission-critical workloads.
High-Speed In-Memory Database Acceleration for Financial Analytics
A financial services firm deploying SAP HANA on HPE ProLiant DL380 Gen10 leverages the 838089-B21 HPE 16GB 2Rx8 PC4-2666V-R Smart Kit to scale in-memory data processing. The kit’s dual-rank ECC design and 2666MHz bandwidth deliver sub-millisecond query response, enabling real-time risk analysis and 40% faster report generation, while maintaining data integrity under 24x7 trading conditions.
High-Performance Computing Cluster Memory Scaling for AI Workloads
An AI research lab expands its HPE Apollo 6500 Gen10 cluster with the HPE 16GB 2Rx8 PC4-2666V-R Smart Kit (838089-B21) to support large-scale deep learning training. The 2666MT/s RDIMM modules optimize GPU-CPU data transfer, reducing epoch time by 25% and increasing parameter tuning throughput by 35%, ensuring scalable, reliable memory performance for parallel AI computations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 |
| Capacity | 16 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Compatible Platforms | Desktop | Desktop | Desktop | Desktop | Desktop |
| Compatible Systems | Workstation | Workstation | N/A | N/A | N/A |
| Depth | 0.14 inches | 0.5 inches | 0.2 inches | 0.2 inches | 0.5 inches |
| ECC Support | No | No | No | No | No |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Height | 1.25 inches | 1.4 inches | 1.3 inches | 1.2 inches | 1.5 inches |
| Intel Platform Support | Intel 12th Gen | Intel 10th Gen | Intel 10th Gen | Intel 12th Gen | Intel 12th Gen |
| Kit Configuration | Dual Channel | Dual Channel | Dual Channel | Single Channel | Dual Channel |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Operating Temperature | 0 to 85°C | N/A | N/A | N/A | N/A |
| Product Name | P00926-B21 16GB Dual Channel DDR4-3200 Memory Kit | P00930-B21 High-Performance DDR4 16GB Dual Channel Memory Kit | P10729-B21 DDR4 Desktop Memory Module | 838089-B21 16GB DDR4 Desktop Memory Module | 728629-B21 DDR4 High Performance Memory |
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| RGB Lighting | No | Yes | No | No | No |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Use Case | Gaming | Gaming | Gaming / Workstation | Gaming | Gaming |
| Voltage | 1.35V | 1.35V | 1.35V | 1.35V | 1.35V |
| Weight | 0.22 lbs | 0.35 lbs | 0.35 lbs | 0.15 lbs | 0.3 lbs |
| Width | 5.25 inches | 5.3 inches | 5.3 inches | 5.3 inches | 5.3 inches |
| XMP Support | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 |
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Questions & Answers
Q
What is the HPE 16GB 2Rx8 PC4-2666V-R Smart Kit (SKU: 838089-B21)?
A
The HPE 16GB 2Rx8 PC4-2666V-R Smart Kit (SKU: 838089-B21) is a 16GB DDR4 registered ECC memory module running at 2666 MT/s with a dual-rank (2Rx8) configuration for HPE ProLiant servers.
Q
What are the key technical specifications of the HPE 838089-B21 Smart Kit?
A
It features 16 GB capacity, DDR4-2666 MT/s speed (PC4-2666V-R), dual-rank 2Rx8 architecture, ECC support, CAS latency 19, and operates at 1.2 V.
Q
Which HPE servers support the 16GB PC4-2666V-R Smart Kit (838089-B21)?
A
It is validated for HPE ProLiant Gen10, Gen9 and select Gen8 servers that support DDR4 PC4-2666V-R registered memory.
Q
Does the HPE 16GB Smart Kit support ECC error correction?
A
Yes, the module includes ECC (Error-Correcting Code) functionality to detect and correct single-bit memory errors in server environments.
Q
How do I install the HPE 16GB 2Rx8 PC4-2666V-R Smart Kit?
A
Power off the server, open the chassis, insert the DIMM into the correct slot until the latches click, then power on and confirm detection in BIOS or HPE iLO.
Q
Can I mix the 838089-B21 Smart Kit with other memory modules?
A
Mixing different speeds or module types is not recommended; for optimal stability and performance, install identical HPE PC4-2666V-R modules in all slots.
Q
What does PC4-2666V-R mean on this Smart Kit?
A
PC4-2666V denotes DDR4 memory rated at 2666 MT/s, and the R suffix indicates registered (buffered) operation for server-grade reliability.
Q
What is the significance of the 2Rx8 designation?
A
2Rx8 indicates a dual-rank memory layout with eight banks per rank, balancing capacity and performance in server workloads.
Q
What voltage does the HPE 16GB Smart Kit require?
A
The module operates at the standard DDR4 voltage of 1.2 V.
Q
Is the 838089-B21 Smart Kit compatible with Intel Xeon processors?
A
Yes, it is fully validated for Intel Xeon Scalable and Intel Xeon E5/E7 series processors in supported HPE platforms.
Q
What is the CAS latency of the HPE PC4-2666V-R memory?
A
The module features a CAS latency of 19 (CL19) when running at 2666 MT/s.
Q
How many modules are included in one HPE 16GB Smart Kit?
A
Each Smart Kit (SKU: 838089-B21) contains a single 16 GB registered memory module.
Q
Can I install the HPE 16GB Smart Kit in matched pairs?
A
Yes, installing modules in matched pairs enables optimal channel interleaving and maximizes memory throughput.
Q
What warranty does HPE offer for the 838089-B21 Smart Kit?
A
HPE provides a limited lifetime warranty covering defects in materials and workmanship for this memory module.
Q
Where can I purchase the HPE 16GB 2Rx8 PC4-2666V-R Smart Kit?
A
You can buy the 838089-B21 Smart Kit through authorized HPE resellers and the official HPE online store.
Q
How do I verify the HPE Smart Kit after installation?
A
Open the server’s BIOS/UEFI memory configuration menu or log into HPE Integrated Lights-Out (iLO) to confirm the module’s capacity, speed and status.
