
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Kingston KSM48P40BS4PMM-32MAR 32GB DDR5-4800MHz RDIMM 1Rx4 CL40 Memory
- Capacity: 32GB
- Type: DDR5 RDIMM (Registered DIMM)
- Speed: 4800MHz
- Latency: CL40
- Configuration: 1Rx4 (Single Rank, x4 organization)
- ECC: Yes (Error-Correcting Code)
- Voltage: Standard DDR5 voltage
- Designed for server and workstation environments
KSM48P40BS4PMM-32MAR 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 ↓- Memory Type
- DDR5 RDIMM
- Capacity
- 32GB
- Speed
- 4800MHz
- CAS Latency
- CL40
- Rank
- 1Rx4
- ECC
- Yes
Product details
The Kingston KSM48P40BS4PMM-32MAR is a high-performance 32GB DDR5 memory module designed for servers and workstations. It operates at a speed of 4800MHz with a CAS latency of 40, providing significant bandwidth for demanding applications. This module is a 1Rx4 RDIMM, suitable for systems requiring registered ECC memory.
Technical Information
| Memory Type | DDR5 RDIMM |
| Capacity | 32GB |
| Speed | 4800MHz |
| CAS Latency | CL40 |
Additional Specifications
| Rank | 1Rx4 |
| ECC | Yes |
| Form Factor | RDIMM |
Description
This Kingston memory module, identified by the SKU KSM48P40BS4PMM-32MAR, is engineered for advanced computing platforms that leverage the capabilities of DDR5 technology. With a substantial 32GB capacity, it is ideal for memory-intensive tasks such as large-scale data analysis, virtualization, and complex scientific simulations. The 4800MHz clock speed ensures rapid data transfer rates, significantly reducing latency and improving overall system responsiveness. The module features a 1Rx4 rank configuration, meaning it has a single rank with four data bits per chip. This organization is common in server-grade memory, optimizing performance and compatibility with high-end server chipsets. As a Registered DIMM (RDIMM), it incorporates a register chip that buffers command and address signals, reducing electrical load on the memory controller and allowing for higher memory capacities and speeds. Furthermore, the inclusion of Error-Correcting Code (ECC) functionality is crucial for mission-critical applications where data integrity is paramount. ECC memory can detect and correct single-bit errors on the fly, preventing data corruption and system crashes. The CL40 latency rating indicates the number of clock cycles required to access data, a standard specification for DDR5 modules of this speed and type, ensuring reliable operation within specified system parameters.
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 KSM48P40BS4PMM-32MAR.



