4X77A93528 Lenovo 64GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Compatible Memory
64GBDDR5-6400RDIMM2Rx41.1V
SKU: 4X77A93528
$ 2,439
≈ €2102.00
🟢 100+ pcs available · Lead time: 2-3 Days · Updated 10 Aug 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
Fast response for B2B quantity requests
Technical Support
Compatibility and sourcing assistance
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:
KSM64R52BD4-64MD Kingston 64GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Memory. - Fully compatible
Fully compatible with servers requiring 4X77A93528.
4X77A93528 Specifications
| Compatible OEM | Lenovo |
|---|---|
| Part Number | 4X77A93528 |
| Memory Size | 64GB |
| Memory Speed | DDR5-6400 |
| Memory Technology | DDR5 |
| Speed | 6400 |
| Rank and Organization | 2Rx4 |
| Rank Type | Dual Rank |
| Chip Organization | x4 |
| Error Correction (ECC) | ECC |
| CAS Latency | CL52 |
| DIMM Type | Registered |
| Form Factor | RDIMM |
| Voltage | 1.1V |
| Pins | 288 |
| Height | STD |
| JEDEC Specification | PC5-51200R |
| Temperature | 0°C to 95°C |
Compatible Systems
Same-Spec Alternatives
Alternative part numbers with matching key specifications.
| Picture | Part Number | Brand | Size | Speed | Form Factor | Ships In | Stock | Price | |
|---|---|---|---|---|---|---|---|---|---|
| Samsung | 64GB | DDR5-6400 | RDIMM | 38 | |||||
| Samsung | 64GB | DDR5-6400 | RDIMM | 500 | |||||
| Samsung | 64GB | DDR5-6400 | RDIMM | 100 | |||||
| Samsung | 64GB | DDR5-6400 | RDIMM | 1000 | |||||
| Micron | 64GB | DDR5-6400 | RDIMM | 114 | |||||
| Micron | 64GB | DDR5-6400 | RDIMM | 94 | |||||
| Micron | 64GB | DDR5-6400 | RDIMM | 401 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 124 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 100 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 100 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 99 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 59 | |||||
| Micron | 64GB | DDR5-6400 | RDIMM | 500 | |||||
| SK Hynix | 64GB | DDR5-6400 | RDIMM | 1981+ | |||||
| Micron | 64GB | DDR5-6400 | RDIMM | 100 |
Need help choosing between available part numbers? Contact us for pricing and availability.