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728629-B21
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- HP 32GB (1x32GB) Dual Rank x4 DDR4-2133 CAS-15-15-15 Registered Memory Kit
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728629-B21
HP 32GB (1x32GB) Dual Rank x4 DDR4-2133 CAS-15-15-...
$1,534.67
$475.75
16 in Global Warehouse
$475.75
69% off
TRUSTED, TRIED, PROVEN
728629-B21 Overview
728629-B21 is a DDR4 UDIMM memory module engineered for high-performance desktop applications. It features a 16 GB capacity per module, operates at 3200 MHz with a CAS latency of CL16 and a voltage of 1.35V, and is configured in a dual channel kit setup, offering unbuffered, non-ECC support with an integrated heatspreader for effective thermal management—all optimized for gaming and workstation builds.
This memory module does not include RGB lighting, ensuring a streamlined design for consumers who prioritize performance and reliability over aesthetic enhancements. Its compatibility with modern desktop systems, along with support for Intel 12th Gen and AMD Ryzen 5000 platforms and Intel XMP 2.0 certification, makes it an ideal choice for enthusiasts and professionals alike.
What is the price of 728629-B21?
Lowest price of 728629-B21 is $ 475.75. Shop now! Get further exclusive discounts with bulk quotation on 728629-B21
Explore more options from Computer Memory & Ram or explore other Hpe products.
728629-B21 Specifications
| Product Type | Computer Memory |
| Memory Type | DDR4 |
| Capacity | 16 GB |
| Compatible Platforms | Desktop |
| Compatible Systems | N/A |
| Form Factor | UDIMM |
| Kit Configuration | Dual 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 | 728629-B21 DDR4 High Performance Memory |
| Height | 1.5 inches |
| Width | 5.3 inches |
| Depth | 0.5 inches |
| Weight | 0.3 lbs |
728629-B21 Use Case
High-Density Virtualization on HPE ProLiant Gen9 Servers
In a financial services data center running dozens of VMware vSphere instances on HPE ProLiant DL380 Gen9 servers, IT architects install the 728629-B21-HP 32GB (1x32GB) Dual Rank x4 DDR4-2133 CAS-15 Registered Memory Kit to maximize VM density per host. The CAS-15 latency and ECC registered design ensure error-free operation under peak loads, boosting consolidation ratios by up to 30% and reducing capital and operating expenses. Outcome: Higher VM counts, predictable performance, and simplified capacity planning for growth without compromise.
In-Memory Database Acceleration for Real-Time Analytics
A retail chain deploying SAP HANA for real-time inventory and sales analytics leverages the 728629-B21-HP 32GB DDR4-2133 Registered Memory Kit across its HPE Superdome Flex servers. With Dual Rank x4 modules and tight CAS-15 timings, the platform delivers sub-millisecond query response and up to 20% faster data ingestion. Outcome: Immediate business insights, improved stock replenishment accuracy, and enhanced customer satisfaction through real-time reporting.
AI/ML Model Training on HPE Apollo GPU Accelerators
A machine learning team uses HPE Apollo 6500 Gen10 servers with NVIDIA GPUs for deep learning training and inference at scale. By equipping each node with the 728629-B21-HP 32GB Registered DDR4-2133 CAS-15 Memory Kit, they achieve balanced CPU-to-memory throughput, reducing GPU starvation and shortening model training times by up to 25%. Outcome: Faster time-to-market for AI models, reliable large-batch training, and consistent performance under sustained workloads.
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 3000 | AMD Ryzen 3000 | AMD Ryzen 5000 |
| Capacity | 16 GB | 16 GB | 8 GB | 16 GB | 16 GB |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Compatible Platforms | Desktop | Desktop / Laptop / Server | Desktop | Desktop | Desktop |
| Compatible Systems | Workstation | Workstation | N/A | Workstation | N/A |
| Depth | 0.2 inches | 0.4 inches | 0.5 inches | 0.5 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 | 1.3 inches | 1.2 inches | 1.2 inches | 1.2 inches | 1.5 inches |
| Intel Platform Support | Intel 12th Gen | Intel 12th Gen | Intel 10th Gen | Intel 10th Gen | Intel 12th Gen |
| Kit Configuration | Dual Channel | Dual Channel | Single Channel | Dual Channel | Dual Channel |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Product Name | 815098-B21 Performance DDR4 UDIMM Memory Module | 862974-B21 Memory Module | 838081-B21 DDR4 8GB UDIMM 3200MHz CL16 Memory Module | 805349-B21 | 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 | No | No | No | No |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Use Case | Gaming | Gaming | Gaming | Gaming | Gaming |
| Voltage | 1.35V | 1.35V | 1.35V | 1.35V | 1.35V |
| Weight | 0.3 lbs | 0.26 lbs | 0.3 lbs | 0.35 lbs | 0.3 lbs |
| Width | 5.3 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 capacity of the HP 728629-B21 memory kit?
A
The HP 728629-B21 memory kit delivers a total of 32 GB capacity via a single 32 GB DDR4 module.
Q
What type of memory is the HP 728629-B21 kit?
A
It is DDR4-2133 Registered ECC memory in a dual-rank x4 configuration.
Q
What is the speed of the HP 728629-B21 memory kit?
A
It operates at 2133 MT/s (DDR4-2133), offering PC4-17000 bandwidth.
Q
What are the latency timings for this memory?
A
The module features CAS latency timings of 15-15-15 at 1.2 V.
Q
Does the HP 728629-B21 kit support ECC?
A
Yes, it supports error-correcting code (ECC) to detect and correct single-bit errors.
Q
Which servers are compatible with the HP 728629-B21 memory kit?
A
It is validated for HP ProLiant Gen8 and Gen9 servers, including DL and ML series.
Q
Can I mix the 728629-B21 module with other memory modules?
A
HP recommends using matched modules; mixing different sizes, speeds, or ranks may cause instability.
Q
How many modules are included in the HP 728629-B21 kit?
A
The kit includes one (1) 32 GB Registered DIMM module.
Q
What is the operating voltage of this memory?
A
The module operates at a standard 1.2 V DDR4 voltage.
Q
What is dual-rank memory?
A
Dual-rank memory includes two sets of memory banks on a single module, enhancing channel utilization and compatibility.
Q
What does RDIMM mean?
A
RDIMM stands for Registered DIMM, which uses a register to buffer control signals for improved stability in multi-module configurations.
Q
What is an x4 configuration?
A
An x4 configuration means each DRAM chip handles 4 data bits per cycle, providing high density and ECC support.
Q
What warranty does HP provide for the 728629-B21 kit?
A
HP offers a limited lifetime warranty covering defects in materials and workmanship.
Q
How do I install the HP 728629-B21 memory module?
A
Power down the server, open the chassis, insert the module firmly into a compatible DIMM slot until latched, then power on.
Q
What are the operating temperature and humidity ranges?
A
The module operates between 0 °C to 85 °C with 10 %–90 % non-condensing relative humidity.
Q
How does DDR4-2133 compare to DDR4-2400 memory?
A
DDR4-2133 runs at 2133 MT/s with lower power consumption, while DDR4-2400 offers higher bandwidth at 2400 MT/s but may require BIOS support.
