| Manufacturer | Lenovo |
| Manufacturer Part Number | 4X77A81441 |
| Product Name | Lenovo 64GB DDR5 4800MHz DIMM ECC Memory Module |
| Product Type | Memory module |
| Memory Capacity | 64 GB |
| Memory Technology | DDR5 SDRAM |
| Module Type | DRAM memory module |
| Form Factor | DIMM 288-pin |
| Memory Rank | 2RX4 (Dual Rank, x4) |
| Speed | 4800 MHz (PC5‑38400) |
| Upgrade Type | System specific |
| Weight | Approx. 35 g |
| Power Requirements | 1.1V (operating voltage) |
Lenovo 64GB DDR5 4800MHz DIMM ECC Memory Module

Key Benefits
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- Provides high-capacity 64GB upgrade for data-intensive environments
- Faster DDR5 4800 MHz speed enhances server performance and responsiveness
- On-die ECC ensures data integrity for mission-critical enterprise applications
Product Overview
The Lenovo 4X77A81441 memory module is engineered to meet demanding enterprise computing requirements. With a massive 64GB DDR5 SDRAM capacity and a blazing-fast 4800 MHz speed (PC5-38400), this DIMM delivers substantial performance improvements for Lenovo ThinkSystem environments. Its dual-rank (2RX4) configuration and 288-pin footprint ensure seamless integration into compatible server architectures.
Advanced features like on-die ECC (Error Correction Code) offer enhanced data integrity and reduced risk of system errors, making this memory module suitable for mission-critical applications. Designed specifically for system-oriented upgrades, it ensures optimal compatibility and stability, helping minimize downtime and improve operational efficiency in business and data center environments.
By leveraging next-generation DDR5 technology, this module supports faster throughput and better power efficiency over previous DDR generations. This makes it an ideal choice for high-performance computing tasks, virtualization, advanced analytics, and other memory-intensive operations where performance and reliability are paramount.
Specifications
Product Overview
Physical & Environmental
| Module Dimensions (H x L) | 31.25 mm x 133.35 mm |
| Operating Temperature (Min) | 0°C |
| Operating Temperature (Max) | 85°C |
| Storage Temperature (Min) | -40°C |
| Storage Temperature (Max) | 95°C |
| Operating Humidity Range | 10% to 80% (non-condensing) |
| Storage Humidity Range | 5% to 95% (non-condensing) |
Advanced Security Features
| Error Correction | On-die ECC |
| Data Integrity Check | ECC (Error-Correcting Code) |
Interfaces
| Interface Type | 288-pin DIMM |
| Bus Speed | 4800 MT/s |
| Chip Organization | x4 |
Compliance & Origin
| Country of Origin | |
| TAA Compliant | |
| RoHS Compliance | Yes |
| JEDEC Compliant | Yes |
| Halogen-Free | Yes |
| REACH Compliance | Yes |
Other Specifications
| Latency | CL40 |
| Compatibility | Lenovo ThinkSystem servers |
| Rank | Dual Rank |
| Number of Pins | 288 |
| UPC | 889488625932 |
| ECC Type | On-die ECC |