SAMSUNG M393A4K40BB0-CPB 32GB DDR4 2133 RDIMM
The Samsung M393A4K40BB0-CPB is a 32GB DDR4-2133 registered ECC DIMM (RDIMM) built for enterprise servers, data centers, virtualization hosts, and storage systems. It suits buyers maintaining or expanding DDR4-generation platforms that require registered modules with error correction for sustained reliability under load. As a PC4-17000R entry-speed DDR4 part, it is best treated as a capacity-oriented upgrade for existing fleets rather than a performance-tier component for latency-sensitive cache workloads.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | Samsung M393A4K40BB0-CPB |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 32GB |
| Data Rate | 2133 MT/s (entry DDR4 speed grade; actual rate depends on platform support) |
| Speed Grade | PC4-17000R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL15 |
| Operating Voltage | 1.2V (standard DDR4) |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | 4G x 72 |
| DRAM Architecture | x4-based DRAM |
| Number of DRAM Chips | 36 |
| Compliance | JEDEC DDR4 Standard |
| Memory Bandwidth | 17.0 GB/s |
| Operating Temperature | 0°C to 85°C |
| Applications | Enterprise Servers, Data Centers, Virtualization Platforms, Storage Systems |
Good to know
- Compatibility: This is a DDR4 RDIMM and will not operate in DDR3 or DDR5 platforms; confirm your server validates RDIMMs at 2133 MT/s, and note that mixing RDIMMs with LRDIMMs or UDIMMs in the same channel is not supported. Follow your platform’s population guidelines for balanced channel filling, particularly on multi-socket virtualization hosts.
- Family positioning: Within Samsung’s DDR4 RDIMM lineup, this 2133 MT/s, CL15 dual-rank module sits at the entry speed grade — a common choice for capacity refreshes in older-generation platforms, while newer systems typically run higher-speed DDR4 RDIMMs that are backward-tolerant only if the platform downclocks.
- Buying tip: Verify the exact model number and speed grade (PC4-17000R) against your server’s qualified memory list (QVL/SPS) before ordering, and consider purchasing matched modules in identical capacity and rank configuration to keep channel population uniform across the system.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Samsung M393A4K40BB0-CPB is a 32GB DDR4-2133 registered ECC DIMM (RDIMM) built for enterprise servers, data centers, virtualization hosts, and storage systems. It suits buyers maintaining or expanding DDR4-generation platforms that require registered modules with error correction for sustained reliability under load. As a PC4-17000R entry-speed DDR4 part, it is best treated as a capacity-oriented upgrade for existing fleets rather than a performance-tier component for latency-sensitive cache workloads.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | Samsung M393A4K40BB0-CPB |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 32GB |
| Data Rate | 2133 MT/s (entry DDR4 speed grade; actual rate depends on platform support) |
| Speed Grade | PC4-17000R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL15 |
| Operating Voltage | 1.2V (standard DDR4) |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | 4G x 72 |
| DRAM Architecture | x4-based DRAM |
| Number of DRAM Chips | 36 |
| Compliance | JEDEC DDR4 Standard |
| Memory Bandwidth | 17.0 GB/s |
| Operating Temperature | 0°C to 85°C |
| Applications | Enterprise Servers, Data Centers, Virtualization Platforms, Storage Systems |
Good to know
- Compatibility: This is a DDR4 RDIMM and will not operate in DDR3 or DDR5 platforms; confirm your server validates RDIMMs at 2133 MT/s, and note that mixing RDIMMs with LRDIMMs or UDIMMs in the same channel is not supported. Follow your platform’s population guidelines for balanced channel filling, particularly on multi-socket virtualization hosts.
- Family positioning: Within Samsung’s DDR4 RDIMM lineup, this 2133 MT/s, CL15 dual-rank module sits at the entry speed grade — a common choice for capacity refreshes in older-generation platforms, while newer systems typically run higher-speed DDR4 RDIMMs that are backward-tolerant only if the platform downclocks.
- Buying tip: Verify the exact model number and speed grade (PC4-17000R) against your server’s qualified memory list (QVL/SPS) before ordering, and consider purchasing matched modules in identical capacity and rank configuration to keep channel population uniform across the system.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
