SAMSUNG M393A4K40DB3 32GB DDR4 RDIMM Server Memory (RAM), 3200 Mbps Memory Speed, 2R x 4 Rank, ECC, 1.2 Voltage, 288 Pins | M393A4K40DB3-CWE

Samsung 32 GB DDR4‑3200 MHz ECC RDIMM – Ultimate Server Performance

The Samsung M393A4K40DB3‑CWE is a high-performance, ECC-registered memory module engineered for servers, data centers, and mission-critical applications. This 32 GB DDR4 RDIMM operates at blazing-fast 3200 MT/s (PC4-25600) speeds with low power consumption at just 1.2 V. Dual-rank (2R×4) configuration provides excellent data integrity and stability, while ECC (Error‑Correcting Code) ensures continuous uptime by detecting and correcting memory errors on the fly.

Designed for 288-pin DIMM motherboards supporting registered ECC memory, this module integrates logic-level buffering (“registered”) to optimize signal integrity across multi-slot server environments. Ideal for virtualization, database servers, and enterprise workloads, the M393A4K40DB3 delivers robust performance and compatibility backed by Samsung engineering.

Specification

Feature Specification

Capacity 32 GB

Memory Type DDR4 SDRAM

DIMM Type Registered (RDIMM)

Error Correction ECC (Error‑Correcting Code)

Speed 3200 MT/s (PC4‑25600)

Voltage 1.2 V

Rank × Organization 2R × 4

CAS Latency CL22 (tRCD/tRP/tRAS typical)

Pins 288-pin

Component Composition (2 Gbit × 4) × 36

Application Server, Data Center, AI, 5G

Form Factor 1 DIMM module, 133 mm × 30 mm

Industry Status Discontinued / EOL