Description
The AddOn HP® P43337-K21 Compatible 256GB DDR5-4800MHz Registered Octal Rank x4 1.1V 288-pin CL40 RDIMM delivers the next generation of high-performance memory for mission-critical servers and enterprise applications. Built to strict JEDEC standards and manufactured at tier 1 facilities (Samsung®, Micron®, or Hynix®), this module ensures superior reliability, speed, and efficiency.
Engineered with advanced ECC error correction and octal rank design, it enhances stability and system uptime for intensive workloads such as virtualization, big data, and AI-driven applications. Guaranteed to be fully compatible with HP® systems, this module is backed by federal law protections ensuring OEM warranties remain intact, making it a dependable upgrade for high-capacity server environments.
| Attribute | Specification |
|---|---|
| Compatible OEM | HP® |
| Compatible With OEM Part Number(s) | P43337-B21, P43337-K21 |
| Memory Size | 256GB |
| Memory Technology | DDR5 |
| Memory Speed | 4800MHz |
| DIMM Type | Registered (RDIMM) |
| Error Correction | ECC |
| CAS Latency | CL40 |
| Rank | Octal |
| Chip By Value | x4 |
| Memory Voltage | 1.1V |
| Pins | 288-pin |
| Form Factor | RDIMM |
| Kit | No Kit – 1 Piece |
| Product Shipping Dimensions (HxWxD) | 0.5 in. x 2 in. x 6.5 in. |
| Product Shipping Weight | 0.75 lb |
| What’s in the Box | 1x Memory Module |
| ECCN | EAR99 |
| HTS-Harmonized Code (US) | 8473.30.5100 |
| HTS-Harmonized Code (UK) | 84733020 |
| UNSPSC Code | 43201402 |
| TAA Compliant | No |
| UPC Code | 195285853851 |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
