Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM
Brand: Lenovo | Category: Memory (RAM)
SKU: 4X77A87321 | Part #: 4X77A87321 | MPN: 4X77A87321
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About the Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM
A single 256GB TruDDR5 module establishes the maximum memory ceiling for Lenovo ThinkSystem Gen 3 servers, enabling enterprise infrastructure teams to deploy massive in-memory workloads without fragmentation across multiple nodes. This Lenovo part (4X77A87321) represents the flagship capacity point in the TruDDR5 lineup, engineered for data-intensive operations where memory density directly translates to competitive advantage.
Built on DDR5 architecture with registered buffering and quad-rank configuration, this RDIMM delivers 4800MHz performance alongside native on-die error correction—critical safeguards for mission-critical database servers, high-performance computing clusters, and virtualization platforms. The 1.1V operating voltage reflects DDR5's power efficiency gains, while the 288-pin form factor ensures seamless integration into ThinkSystem SR650 V3, SR850 V3, SR860 V3, and SR950 V3 platforms. For IT procurement teams and storage architects evaluating memory refresh cycles, the combination of ECC protection, quad-rank density, and Lenovo's TruDDR5 validation delivers both reliability and economies of scale. Operating across the 0°C to 85°C range, this module accommodates diverse data center thermal profiles without performance degradation.
Key Specifications
- Manufacturer Part Number: 4X77A87321
- Module Type: RDIMM (Registered Dual In-Line Memory Module)
- Capacity: 256GB
- Speed: 4800MHz (4800MT/s)
- Memory Technology: DDR5
- ECC Support: Yes — ECC with on-die DDR5 native correction
- Voltage: 1.1V
- Form Factor: 288-pin DIMM
- Rank Configuration: Quad Rank (4Rx4)
- Compatible Systems: Lenovo ThinkSystem Gen 3 servers (SR650 V3, SR850 V3, SR860 V3, SR950 V3)
Contact Omnixon Global to request a quotation for the Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM and explore bulk licensing or deployment options for your enterprise infrastructure.
Technical Specifications
| Brand | Lenovo |
| Category | Memory (RAM) |
| SKU | 4X77A87321 |
| Part Number | 4X77A87321 |
| Condition | New |
| Manufacturer Part Number | 4X77A87321 |
| Module Type | RDIMM (Registered Dual In-Line Memory Module) |
| Capacity | 256GB |
| Memory Technology | DDR5 |
| Speed | 4800MHz (4800MT/s) |
| Form Factor | 288-pin DIMM |
| ECC Support | Yes — ECC (Error-Correcting Code) |
| On-Die ECC | Yes (DDR5 native on-die ECC) |
| Registered (Buffered) | Yes |
| Voltage | 1.1V |
| Compatibility | Lenovo ThinkSystem Gen 3 servers |
| Compatible Server Examples | ThinkSystem SR650 V3, SR850 V3, SR860 V3, SR950 V3 |
| Product Line | Lenovo TruDDR5 |
| Ranks | Quad Rank (4Rx4) |
| Operating Temperature | 0°C to 85°C (standard RDIMM operating range) |
Frequently Asked Questions about Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM
What does the Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM do?
The Lenovo ThinkSystem 256GB TruDDR5 4800MHz RDIMM is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. Lenovo validates this module against major server vendor compatibility matrices.