Samsung M393A8G40CB4-CWE 64G DDR4 3200 RDIMM
The Samsung M393A8G40CB4-CWE is a 64GB DDR4-3200 registered ECC memory module built for enterprise servers, virtualization hosts, and data center deployments. It suits buyers provisioning or extending dual-socket platforms that accept RDIMMs, where registered buffering is required for higher capacities per channel. As with all RDIMMs, it cannot be mixed with consumer UDIMM or DDR5 modules, so verify your platform’s memory generation before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M393A8G40CB4-CWE |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR4-3200 / PC4-25600 (actual speed may depend on CPU and platform support) |
| Data Transfer Rate | 3200 Mbps |
| Rank Configuration | 2Rx4 (dual rank) |
| ECC Support | Yes |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (4G × 4) × 36 |
| CAS Latency | CL22 |
| Application | Enterprise Servers, Cloud Computing, Virtualization, Data Centers |
| Product Status | Mass Production |
Good to know
- RDIMMs require a server platform with registered-DIMM support and do not mix with UDIMMs or LRDIMMs in the same channel — confirm your motherboard’s qualified vendor list (QVL) for the M393A8G40CB4-CWE.
- Within Samsung’s DDR4 RDIMM lineup, this module sits in the mainstream 64GB dual-rank (2Rx4) tier at DDR4-3200, offering higher per-module density than 32GB parts while remaining broadly compatible with current-generation DDR4 server platforms.
- For balanced channel population, install modules in matched sets per CPU memory channel as specified in your server’s population rules, and verify maximum supported speed at your intended rank-per-channel configuration.
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 M393A8G40CB4-CWE is a 64GB DDR4-3200 registered ECC memory module built for enterprise servers, virtualization hosts, and data center deployments. It suits buyers provisioning or extending dual-socket platforms that accept RDIMMs, where registered buffering is required for higher capacities per channel. As with all RDIMMs, it cannot be mixed with consumer UDIMM or DDR5 modules, so verify your platform’s memory generation before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M393A8G40CB4-CWE |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR4-3200 / PC4-25600 (actual speed may depend on CPU and platform support) |
| Data Transfer Rate | 3200 Mbps |
| Rank Configuration | 2Rx4 (dual rank) |
| ECC Support | Yes |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (4G × 4) × 36 |
| CAS Latency | CL22 |
| Application | Enterprise Servers, Cloud Computing, Virtualization, Data Centers |
| Product Status | Mass Production |
Good to know
- RDIMMs require a server platform with registered-DIMM support and do not mix with UDIMMs or LRDIMMs in the same channel — confirm your motherboard’s qualified vendor list (QVL) for the M393A8G40CB4-CWE.
- Within Samsung’s DDR4 RDIMM lineup, this module sits in the mainstream 64GB dual-rank (2Rx4) tier at DDR4-3200, offering higher per-module density than 32GB parts while remaining broadly compatible with current-generation DDR4 server platforms.
- For balanced channel population, install modules in matched sets per CPU memory channel as specified in your server’s population rules, and verify maximum supported speed at your intended rank-per-channel configuration.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
