Samsung M393A8G40BB4-CWE 64G DDR4 3200 RDIMM
The Samsung M393A8G40BB4-CWE is a 64GB DDR4-3200 registered ECC memory module built for enterprise servers, data centers, and cloud platforms running around the clock. It suits buyers provisioning virtualization hosts, database tiers, or cache layers on DDR4-based server platforms that require registered DIMMs for high-density population. Note that as a DDR4 RDIMM it cannot be mixed with DDR5 or unbuffered desktop memory, so confirm your platform generation before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M393A8G40BB4-CWE |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR4-3200 / PC4-25600 (actual speed depends on CPU and platform support) |
| Data Transfer Rate | 3200 Mbps |
| Rank Configuration | 2Rx4 (dual rank, x4 organization typical for server reliability features) |
| ECC Support | Yes (requires platform with ECC-capable memory controller) |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | Registered DIMM (RDIMM) |
| Chip Organization | (4G x4) × 36 |
| CAS Latency | CL22 / CL24 (varies by module revision) |
| Application | Enterprise Servers, Data Centers, Cloud Platforms |
| Operating Environment | 24/7 Server-Class Operation |
| Product Status | Enterprise Deployment / Limited Availability |
Good to know
- Compatibility: this module fits 288-pin DDR4 RDIMM slots only — it is not backward or forward compatible with DDR5 platforms, and mixing RDIMMs with LRDIMMs or unbuffered modules on the same channel is not supported.
- Within Samsung’s DDR4 RDIMM family, the 64GB 2Rx4 configuration offers a balance of per-slot density and signal integrity, making it well suited to balanced channel population in dual-socket virtualization and storage nodes; check your server’s qualified vendor list (QVL) for validated population rules.
- Buying tip: since the listed status is Enterprise Deployment / Limited Availability and CAS latency can vary by revision, confirm stock and revision details with your account manager before placing volume orders.
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 M393A8G40BB4-CWE is a 64GB DDR4-3200 registered ECC memory module built for enterprise servers, data centers, and cloud platforms running around the clock. It suits buyers provisioning virtualization hosts, database tiers, or cache layers on DDR4-based server platforms that require registered DIMMs for high-density population. Note that as a DDR4 RDIMM it cannot be mixed with DDR5 or unbuffered desktop memory, so confirm your platform generation before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M393A8G40BB4-CWE |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR4-3200 / PC4-25600 (actual speed depends on CPU and platform support) |
| Data Transfer Rate | 3200 Mbps |
| Rank Configuration | 2Rx4 (dual rank, x4 organization typical for server reliability features) |
| ECC Support | Yes (requires platform with ECC-capable memory controller) |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | Registered DIMM (RDIMM) |
| Chip Organization | (4G x4) × 36 |
| CAS Latency | CL22 / CL24 (varies by module revision) |
| Application | Enterprise Servers, Data Centers, Cloud Platforms |
| Operating Environment | 24/7 Server-Class Operation |
| Product Status | Enterprise Deployment / Limited Availability |
Good to know
- Compatibility: this module fits 288-pin DDR4 RDIMM slots only — it is not backward or forward compatible with DDR5 platforms, and mixing RDIMMs with LRDIMMs or unbuffered modules on the same channel is not supported.
- Within Samsung’s DDR4 RDIMM family, the 64GB 2Rx4 configuration offers a balance of per-slot density and signal integrity, making it well suited to balanced channel population in dual-socket virtualization and storage nodes; check your server’s qualified vendor list (QVL) for validated population rules.
- Buying tip: since the listed status is Enterprise Deployment / Limited Availability and CAS latency can vary by revision, confirm stock and revision details with your account manager before placing volume orders.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
