Description
Upgrade your Lenovo ThinkSystem server with high-performance TruDDR5 memory designed for enterprise workloads. The Lenovo 4X77B09643 provides 64GB of DDR5 memory operating at up to 6400MHz in a 2Rx4 RDIMM configuration.
Designed specifically for Lenovo ThinkSystem SR635 V3 and SR655 V3 servers, this RDIMM-A v2 memory module provides Lenovo-tested compatibility, reliability, and performance for demanding data center applications.
Specifications
| Specification | Details |
|---|---|
| Brand | Lenovo |
| MPN | 4X77B09643 |
| Product Type | Server Memory |
| Memory Capacity | 64GB |
| Memory Technology | TruDDR5 |
| Memory Speed | 6400MHz |
| DIMM Type | RDIMM-A v2 |
| Rank / Organization | 2Rx4 |
| Compatible Systems | Lenovo ThinkSystem SR635 V3, SR655 V3 |
| Form Factor | RDIMM |
| Application | Enterprise Server Memory |
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
