Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Kingston KSM48R40BD4IMM-64MAR 64GB DDR5-4800MHz RDIMM 2Rx4 CL40 Memory
- Capacity: 64GB
- Type: DDR5 SDRAM
- Speed: 4800MHz
- Latency: CL40
- Form Factor: RDIMM (Registered DIMM)
- Configuration: 2Rx4 (Dual Rank x4)
- ECC: Yes (implied by RDIMM)
KSM48R40BD4IMM-64MAR isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Manufacturer
- Kingston
- Part Number
- KSM48R40BD4IMM-64MAR
- Memory Type
- DDR5 SDRAM
- Capacity
- 64GB
- Speed
- 4800MHz
- Latency
- CL40
Product details
This Kingston 64GB DDR5 memory module operates at 4800MHz with a CL40 latency. It is an RDIMM (Registered DIMM) with a 2Rx4 configuration, designed for servers and workstations requiring high-capacity, high-speed memory.
Technical Information
| Manufacturer | Kingston |
| Part Number | KSM48R40BD4IMM-64MAR |
| Memory Type | DDR5 SDRAM |
| Capacity | 64GB |
Additional Specifications
| Speed | 4800MHz |
| Latency | CL40 |
| Form Factor | RDIMM |
| Rank | 2Rx4 |
Description
The Kingston KSM48R40BD4IMM-64MAR is a high-performance 64GB DDR5 Registered DIMM (RDIMM) memory module. DDR5 technology represents a significant advancement over previous generations, offering increased bandwidth, lower operating voltages, and improved power efficiency. This module operates at a speed of 4800MHz, providing substantial data throughput for demanding applications. The module features a 2Rx4 configuration, indicating it is dual-ranked with each rank utilizing x4 data-wide DRAM chips. This configuration can enhance performance in certain server memory controllers by allowing more simultaneous access to memory banks. As an RDIMM, it includes an onboard register that buffers address and command signals, reducing electrical load on the memory controller and enabling higher memory capacities and speeds in systems. With a CAS Latency (CL) of 40, this memory module is designed for server and workstation environments where large amounts of memory are required for tasks such as virtualization, large dataset analysis, high-performance computing, and complex simulations. The Registered DIMM format also typically implies support for Error-Correcting Code (ECC) functionality, which is crucial for data integrity in critical systems.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for KSM48R40BD4IMM-64MAR.



