Samsung M393A4K40EB3-CWE 32G DDR4 3200 RDIMM
The Samsung M393A4K40EB3-CWE is a DDR4 ECC Registered DIMM (RDIMM) built for enterprise servers and data center deployments, targeting IT procurement teams, system integrators, and resellers provisioning virtualization hosts or cache-tier workloads. Running at DDR4-3200 (PC4-25600) with CL22 latency at 1.2V, it balances bandwidth and power efficiency for 24/7 server operation. Note that the listing’s title and spec table show conflicting part numbers and capacities (32GB vs. 16GB) — confirm the exact variant with your account manager before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Manufacturer | Samsung |
| Part Number | M393A2K43EB3-CWE (per source table; listing title cites M393A4K40EB3-CWE — verify before purchase) |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) — not compatible with DDR5 platforms or mixed with unbuffered desktop memory |
| Capacity | 16GB (per source table; title indicates 32GB — confirm at order) |
| Data Rate | DDR4-3200 / PC4-25600 (actual speed may be platform dependent) |
| Memory Organization | 2Rx8 (Dual Rank x8) — dual-rank modules can improve bandwidth on balanced channel populations |
| Error Correction | ECC (Error Correcting Code) — requires an ECC-capable server platform |
| CAS Latency | CL22 |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM |
| Component Configuration | (1G × 8) × 18 |
| Application | Enterprise Servers & Data Centers |
| Production Status | Mass Production / Enterprise Deployment |
| Operating Temperature | 0°C to 85°C (typical server environment) |
Good to know
- RDIMMs install only in server/workstation platforms supporting registered ECC DDR4; populate channels in matched sets per your motherboard manual for optimal multi-channel performance, and never mix DDR4 with DDR5 modules.
- As a -CWE (3200) Samsung RDIMM, this sits at the upper end of the DDR4 server line, ideal as a drop-in for virtualization hosts, database, and cache-tier workloads where bandwidth matters; lower-frequency platforms will typically run it at their maximum supported speed.
- Because the listing shows conflicting part number and capacity values, request the exact module label/photo or a spec sheet from the supplier to confirm stock matches your BOM before placing a bulk order.
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 M393A4K40EB3-CWE is a DDR4 ECC Registered DIMM (RDIMM) built for enterprise servers and data center deployments, targeting IT procurement teams, system integrators, and resellers provisioning virtualization hosts or cache-tier workloads. Running at DDR4-3200 (PC4-25600) with CL22 latency at 1.2V, it balances bandwidth and power efficiency for 24/7 server operation. Note that the listing’s title and spec table show conflicting part numbers and capacities (32GB vs. 16GB) — confirm the exact variant with your account manager before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Manufacturer | Samsung |
| Part Number | M393A2K43EB3-CWE (per source table; listing title cites M393A4K40EB3-CWE — verify before purchase) |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) — not compatible with DDR5 platforms or mixed with unbuffered desktop memory |
| Capacity | 16GB (per source table; title indicates 32GB — confirm at order) |
| Data Rate | DDR4-3200 / PC4-25600 (actual speed may be platform dependent) |
| Memory Organization | 2Rx8 (Dual Rank x8) — dual-rank modules can improve bandwidth on balanced channel populations |
| Error Correction | ECC (Error Correcting Code) — requires an ECC-capable server platform |
| CAS Latency | CL22 |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM |
| Component Configuration | (1G × 8) × 18 |
| Application | Enterprise Servers & Data Centers |
| Production Status | Mass Production / Enterprise Deployment |
| Operating Temperature | 0°C to 85°C (typical server environment) |
Good to know
- RDIMMs install only in server/workstation platforms supporting registered ECC DDR4; populate channels in matched sets per your motherboard manual for optimal multi-channel performance, and never mix DDR4 with DDR5 modules.
- As a -CWE (3200) Samsung RDIMM, this sits at the upper end of the DDR4 server line, ideal as a drop-in for virtualization hosts, database, and cache-tier workloads where bandwidth matters; lower-frequency platforms will typically run it at their maximum supported speed.
- Because the listing shows conflicting part number and capacity values, request the exact module label/photo or a spec sheet from the supplier to confirm stock matches your BOM before placing a bulk order.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
