United States$5,000,000+
Inventory Delivered By
P
Patrick Doyle
5
Reliable registered memory for demanding workloads.
805351-B21
HP 32GB 2RX4 PC4-2400T-R SMART KIT SPARE 819412-001 STD
FEATURED DEAL
Name:
805351-B21
- Description:
- HP 32GB 2RX4 PC4-2400T-R SMART KIT SPARE 819412-001 STD
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$1,262.54
- Price:
$202.0184% off
Quantity:
1
Business price:
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
805351-B21 Overview
805351-B21 is a DDR4 UDIMM memory module operating at 3200 MHz with a CAS latency of CL16 and a nominal voltage of 1.35V. This module, available in a 16 GB single-channel kit configuration, is non-ECC and unbuffered, ensuring its compatibility with desktop systems while delivering reliable performance. It features an integrated heatsink heatspreader for enhanced thermal management and supports Intel XMP 2.0, making it ideal for high-performance applications.
805351-B21 is designed specifically for desktop platforms and is compatible with both Intel 12th Gen and AMD Ryzen 5000 systems. With no RGB lighting and a focus on streamlined performance, it is perfectly suited for gaming and workstation builds, meeting the rigorous demands of modern computing environments with precision and stability.
805351-B21 price is $202.01, a 84% saving from the Hpe list price of $1,262.54. 805351-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 805351-B21 for additional pricing. Browse the full Hpe Memory & Ram series or explore all Hpe products.
805351-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
- 805351-B21 DDR4 16GB 3200MHz UDIMM Memory Module
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
805351-B21 Use Case
Hyper-V Cluster Memory Upgrade for Peak Workloads
In an enterprise running Microsoft Hyper-V on HPE ProLiant DL380 Gen10 servers, IT teams install the HP 32GB 2RX4 PC4-2400T-R Smart Kit Spare (805351-B21 | 819412-001) to boost node RAM capacity, delivering 20% higher virtual machine density and stable performance under peak loads while cutting provisioning time by 50%.
Accelerating High-Performance Computing Simulations
A life-sciences research facility integrates the HP 32GB 2RX4 PC4-2400T-R RDIMM Smart Kit Spare into its HPE Apollo cluster to scale per-node memory, reducing molecular dynamics simulation runtimes by 30% and accelerating insights in drug-discovery pipelines.
Zero-Downtime DIMM Replacement for Cloud SLA Assurance
A cloud service provider leverages the hot-swappable HP 32GB 2RX4 PC4-2400T-R Smart Kit Spare on ProLiant servers to perform in-place memory replacements during live operations, maintaining 100% uptime SLAs and cutting mean time to repair (MTTR) by up to 40%.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 805351-B21 |  805349-B21 |  836220-B21 |  713985-B21 |  P00920-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 | 16 GB | 8 GB | 16 GB |
| Compatible Platforms | Desktop | Desktop | Desktop / Laptop / Server | Desktop | Desktop |
| Compatible Systems | N/A | Workstation | Workstation | Workstation | N/A |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Dual 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 12th Gen | Intel 10th Gen | Intel 12th Gen | Intel 11th Gen | Intel 12th Gen |
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 3000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 |
| Use Case | Gaming | Gaming | Gaming | Gaming / Workstation | Gaming |
| Product Name | 805351-B21 DDR4 16GB 3200MHz UDIMM Memory Module | 805349-B21 | 836220-B21 | 713985-B21 DDR4 8GB 3200MHz UDIMM Memory | P00920-B21 |
| Height | N/A | 1.2 inches | 1.18 inches | 1.2 inches | 1.2 inches |
| Width | N/A | 5.3 inches | 5.25 inches | 5.28 inches | 5.3 inches |
| Depth | N/A | 0.5 inches | 0.13 inches | 0.5 inches | 0.6 inches |
| Weight | N/A | 0.35 lbs | 0.34 lbs | 0.25 lbs | 0.2 lbs |
Reviews & Ratings
M
Muneeba Anwar
5
Improved server stability.
G
Georg Fischer
4
Consistent performance.
S
Salik Mahmood
5
Good enterprise upgrade.
C
Catherine Brown
5
Satisfied overall.
Questions & Answers
What are the key features of the HP 32GB 2RX4 PC4-2400T-R Smart Kit Spare (SKU: 805351-B21)?
The HP 32GB 2RX4 PC4-2400T-R Smart Kit Spare (805351-B21) delivers 2400MT/s DDR4 speed, dual-rank ECC Registered memory, advanced error correction, and HP SmartMemory technology for optimized performance and reliability in ProLiant servers.
Which HP servers are compatible with the 805351-B21 Smart Kit Spare?
The 805351-B21 Smart Kit is certified for Gen9 and Gen10 HP ProLiant DL, ML, and BL series servers that support DDR4 PC4-2400T-R ECC Registered modules.
What type of error correction does this 32GB Smart Kit support?
This Smart Kit supports ECC (Error-Correcting Code) Registered technology, which detects and corrects single-bit errors to maintain data integrity and system uptime.
How does dual-rank (2Rx4) design improve performance?
The dual-rank (2Rx4) configuration provides two sets of memory banks per module, enabling higher parallel data access, improved bandwidth, and increased system throughput.
Can I install the HP 32GB 2RX4 Smart Kit alongside other memory modules?
For optimal performance, install identical HP Smart Kits in matched slots. Mixing ranks, speeds, or non-HP modules may disable SmartMemory features and degrade performance.
What is the installation process for SKU 805351-B21?
Power down the server, open the chassis, locate the DDR4 slots, align the module notch, insert the Smart Kit firmly until side latches click, then close the chassis and reboot.
Does the HP 32GB Smart Kit support Intel XMP or proprietary profiles?
HP SmartMemory uses proprietary SPD profiles optimized for ProLiant servers. Intel XMP profiles are not supported on HP Smart Kits.
What operating systems are supported with this memory module?
The HP 32GB Smart Kit is certified for Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, and other OSes supported on HP ProLiant Gen9/Gen10 platforms.
How can I confirm the module is genuine HP memory?
Check the holographic HP resin label, verify SKU 805351-B21, and scan the module’s serial number using HP iLO or the HP SmartMemory validation tool.
What warranty covers the HP 32GB 2RX4 Smart Kit Spare?
This HP Smart Kit Spare carries a limited lifetime warranty when used in HP-certified servers, covering defects in materials and workmanship.
How does HP SmartMemory technology enhance system reliability?
HP SmartMemory provides enhanced error detection, thermal calibration, and firmware optimizations that reduce system errors, enable proactive alerts, and maximize uptime.
What is the typical power consumption of this DDR4 module?
The 805351-B21 Smart Kit operates at 1.2V with an average power draw of 4–5 watts per module, depending on workload and thermal conditions.
How do I troubleshoot memory detection or POST errors?
Reseat the module, verify slot population rules, update server BIOS and iLO firmware, then run the HP Insight Diagnostics memory test to identify faulty modules.
What is the delivery time for HP Smart Kit Spare 805351-B21?
Standard delivery is 3–5 business days in the US. Expedited and international shipping options are available at checkout.
Can I upgrade my server from standard DDR4 to this HP Smart Kit?
Yes. Replace existing modules with SKU 805351-B21 in supported slots, following HP ProLiant memory population guidelines to achieve optimal 2400MT/s performance.
How do I order additional HP Smart Kit Spares or replacements?
Contact your authorized HP reseller or visit the HP Parts Store online. Provide SKU 805351-B21 and the server serial number for compatibility confirmation.