4X77A88639 Lenovo 48GB DDR5-5600 ECC RDIMM 1Rx4 1.1V Compatible Memory
48GBDDR5-5600RDIMM1Rx41.1V
SKU: 4X77A88639
$ 1,630
≈ €1402.00
🟢 100 pcs available · Lead time: 3-4 Days · Updated 1 Jun 2026
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Prices and availability may change and are confirmed on quotation.
Tier-1 Memory
Samsung, Micron & SK Hynix
Server Compatibility
Dell, HPE, Lenovo, Cisco and more
Volume Pricing
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Technical Support
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Overview
- Lenovo does not manufacture memory.
Their systems are qualified using modules from global tier-one manufacturers such as Samsung, Micron, and SK Hynix. - This module is JEDEC-compliant and spec-matched for Lenovo platforms
Ensuring reliable compatibility, performance, and long-term stability. - Supplied as:
M321R6GA0PB0-CWM Samsung 48GB DDR5-5600 ECC RDIMM 1Rx4 1.1V Memory. - Fully compatible
Fully compatible with servers requiring 4X77A88639.
4X77A88639 Specifications
| Compatible OEM | Lenovo |
|---|---|
| Part Number | 4X77A88639 |
| Memory Size | 48GB |
| Memory Speed | DDR5-5600 |
| Memory Technology | DDR5 |
| Speed | 5600 |
| Rank and Organization | 1Rx4 |
| Rank Type | Single Rank |
| Chip Organization | x4 |
| Error Correction (ECC) | ECC |
| CAS Latency | CL46 |
| DIMM Type | Registered |
| Form Factor | RDIMM |
| Voltage | 1.1V |
| Pins | 288 |
| Height | STD |
| JEDEC Specification | PC5-44800R |
| Temperature | 0°C to 95°C |
Compatible Systems
Same-Spec Alternatives
Alternative part numbers with matching key specifications.
Need help choosing between available part numbers? Contact us for pricing and availability.