Brand: Lenovo | Category: Memory (RAM)
SKU: 4X77A77494 | Part #: 4X77A77494 | MPN: 4X77A77494
Contact for Pricing — Request a Quote
The Lenovo TruDDR4 32GB 2Rx4 PC4-25600 ECC RDIMM (Part No. 4X77A77494) is a registered ECC DDR4 memory module engineered specifically for Lenovo ThinkSystem servers. Operating at 3200MHz with a dual-rank, quad-die architecture (2Rx4), the module delivers a balance of high capacity and memory bandwidth suited to demanding server environments. The PC4-25600 designation reflects a peak transfer rate of 25,600 MB/s, while the registered (buffered) design offloads electrical load from the memory controller, enabling higher DIMM populations per channel without signal integrity compromise.
As a Lenovo TruDDR4 module, this RDIMM is validated and qualified through Lenovo's full system-level testing process for ThinkSystem platforms, ensuring interoperability, firmware compatibility, and stable operation across supported server generations including ThinkSystem SR series and ST series rack and tower servers. Error-Correcting Code (ECC) functionality continuously detects and corrects single-bit memory errors in real time, providing the data integrity required for enterprise-grade workloads where silent data corruption is unacceptable.
With a 32GB density per module and support for multi-DIMM configurations, this memory is well-suited to memory-intensive workloads such as in-memory databases, AI/ML inference, large-scale virtualization, and enterprise application servers. Its registered buffered design and ECC protection make it a dependable building block for datacenter infrastructure serving UAE, GCC, EMEA, and APAC enterprise environments.
| Manufacturer | Lenovo |
| Manufacturer Part Number | 4X77A77494 |
| Module Type | RDIMM (Registered / Buffered DIMM) |
| Memory Technology | DDR4 |
| Capacity | 32GB |
| Rank Configuration | 2Rx4 (Dual Rank, x4 organization) |
| Speed Grade | DDR4-3200 |
| PC Speed Rating | PC4-25600 |
| Peak Transfer Rate | 25600 MB/s |
| Error Correction | ECC (Error-Correcting Code) |
| Form Factor | 288-pin RDIMM |
| Voltage | 1.2V |
| CAS Latency | CL22 |
| Operating Temperature | 0°C to 85°C |
| ECC Support | Yes |
| Registered (Buffered) | Yes |
| Compatible Platform | Lenovo ThinkSystem servers (SR and ST series) |
| Series | Lenovo TruDDR4 |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
| Brand | Lenovo |
| Category | Memory (RAM) |
| SKU | 4X77A77494 |
| Part Number | 4X77A77494 |
| Condition | New |
| Manufacturer Part Number | 4X77A77494 |
| Module Type | RDIMM (Registered / Buffered DIMM) |
| Memory Technology | DDR4 |
| Capacity | 32GB |
| Rank Configuration | 2Rx4 (Dual Rank, x4 organization) |
| Speed Grade | DDR4-3200 |
| PC Speed Rating | PC4-25600 |
| Peak Transfer Rate | 25600 MB/s |
| Error Correction | ECC (Error-Correcting Code) |
| Form Factor | 288-pin RDIMM |
| Voltage | 1.2V |
| CAS Latency | CL22 |
| Operating Temperature | 0°C to 85°C |
| ECC Support | Yes |
| Registered (Buffered) | Yes |
| Compatible Platform | Lenovo ThinkSystem servers (SR and ST series) |
| Series | Lenovo TruDDR4 |
Part number 4X77A77494 is qualified for Lenovo servers that list compatible memory in their QVL. We verify QVL match before quoting — share your server model in the RFQ and our pre-sales engineers confirm fit, recommended population pattern, and total capacity supported.
Submit the RFQ form on this page with your quantity and destination country. Our pre-sales team responds with a vendor-confirmed quote, availability, and matching server-QVL confirmation if needed.