Samsung M393A8K40B21-CRB 64GB DDR4 RDIMM ECC Memory Module
The Samsung M393A8K40B21-CRB 64GB DDR4 RDIMM ECC memory is engineered for enterprise servers and high-performance workstations demanding maximum reliability and capacity. This 64GB registered DIMM delivers error-correcting code (ECC) protection and operates at 2133MHz, making it ideal for mission-critical applications, virtualization environments, and data center deployments. Whether you're upgrading legacy server infrastructure or building fault-tolerant systems, this 288-pin DDR4 module provides the stability and performance your organization needs.
Key Features
- 64GB capacity for maximum memory density in server environments
- DDR4 2133MHz speed optimized for enterprise workloads
- Registered DIMM (RDIMM) architecture reduces electrical load on memory controller
- ECC (Error-Correcting Code) protection detects and corrects single-bit errors
- 288-pin DIMM form factor compatible with standard server slots
- 36 FBGA 4Gx4 DRAM components ensure reliable data integrity
- Fully buffered design for multi-socket server configurations
Technical Specifications
| Specification |
Details |
| Manufacturer |
Samsung |
| Part Number |
M393A8K40B21-CRB |
| Capacity |
64GB |
| Memory Type |
DDR4 RDIMM ECC |
| Speed |
2133MHz |
| Form Factor |
288-pin DIMM |
| DRAM Configuration |
36 FBGA (78-ball) 2H TSV 4Gx4 |
| Error Correction |
ECC (Single-bit error correction) |
| Registered |
Yes (Buffered) |
Frequently Asked Questions
What is the difference between RDIMM and UDIMM memory?
RDIMM (Registered DIMM) includes a register that buffers the address and control signals, reducing electrical load on the memory controller. This makes RDIMMs ideal for servers with multiple memory modules. UDIMM (Unbuffered DIMM) connects directly to the controller and is typically used in workstations and desktops. The Samsung M393A8K40B21-CRB is an RDIMM, making it suitable for enterprise server configurations.
Is this 64GB DDR4 memory compatible with my server?
The Samsung M393A8K40B21-CRB 64GB DDR4 RDIMM is compatible with servers that support DDR4 2133MHz registered memory modules with 288-pin DIMM slots. Check your server's memory specifications to confirm support for this speed and type. Most enterprise servers from Dell, HP, Lenovo, and Cisco support this standard configuration.
Why choose ECC memory for server applications?
ECC (Error-Correcting Code) memory automatically detects and corrects single-bit errors that can occur during data processing. This is critical for servers running databases, virtualization, and mission-critical applications where data integrity cannot be compromised. The M393A8K40B21-CRB's ECC protection ensures your server maintains reliability under demanding workloads.
What does 2133MHz speed mean for server performance?
The 2133MHz speed refers to the memory's clock frequency, affecting data transfer rates. This speed is optimized for enterprise workloads and balances performance with power efficiency. While newer DDR4 modules support higher speeds, 2133MHz remains a reliable standard for many server platforms and provides excellent compatibility across generations.
