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Green rectangular DDR4 DIMM module with gold contacts and black chips

SAMSUNG

SAMSUNG M393A8G40CB4-CWE 64GB DDR4 3200 Registered server RAM

SKU CH-0JAX-GAA5D MPN M393A8G40CB4-CWE

64 GB DDR4 3200 registered DIMM with dual-rank layout for high-capacity server workloads

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 3200 (PC4 25600)
  • Voltage1.20V
  • Buffered/RegisteredRegistered
  • RankDual-rank
  • 64 GB capacity handles heavy workloads and virtualization smoothly
  • DDR4-3200 speed at 1.20 V delivers high throughput with low power draw
  • Registered dual-rank design improves signal integrity for server stability
  • 288-pin DIMM form factor fits standard DDR4 server memory slots
  • Samsung engineering provides reliable performance for demanding server environments

Server-grade 64 GB DDR4 module

The Samsung M393A8G40CB4-CWE is a 64 GB registered DIMM built for DDR4-3200 server platforms. Its dual-rank organisation and 1.20 V operation target workloads that demand high capacity per slot and signal integrity under continuous load. It is not suited for desktop boards that accept only unbuffered memory.

Compatibility checklist before ordering

Verify that your motherboard supports registered DDR4 DIMMs and can address 64 GB per slot at 3200 MT/s. Confirm the board’s maximum memory capacity and qualified-vendor list include this module. Systems limited to unbuffered memory or lower speeds cannot use this part.

Behaviour under sustained load

Registered signalling reduces electrical load on the memory bus, helping maintain stability during prolonged, multi-threaded workloads. The dual-rank layout allows the memory controller to interleave accesses, which sustains throughput when all ranks are active for extended periods.

Pontos fortes

  • 64 GB capacity handles heavy workloads and virtualization smoothly
  • DDR4-3200 speed at 1.20 V delivers high throughput with low power draw
  • Registered dual-rank design improves signal integrity for server stability
  • 288-pin DIMM form factor fits standard DDR4 server memory slots
  • Samsung engineering provides reliable performance for demanding server environments

Especificações

BrandSAMSUNG
ModelM393A8G40CB4CWE
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 3200 (PC4 25600)
Voltage1.20V
Buffered/RegisteredRegistered
RankDual-rank
Peso de envio0.09 kg
Dimensões da embalagem127 × 25 × 0 mm

Perguntas sobre este artigo

Does the SAMSUNG M393A8G40CB4-CWE come as a single 64GB module or a kit of multiple sticks?

The M393A8G40CB4-CWE is supplied as one 64GB DIMM; additional modules must be purchased separately to reach a desired total capacity.

How do I decide between this 64GB dual-rank module and a lower-capacity single-rank alternative?

Choose the 64GB dual-rank DIMM when maximum density per slot is required; opt for a smaller single-rank module only if your platform limits rank count per channel.

What real-world throughput does the DDR4-3200 PC4-25600 rating deliver inside a server?

The PC4-25600 designation indicates a peak transfer rate of 25,600 MB/s per module, which the memory controller can sustain when all channels are populated and the BIOS runs at the rated 3200 MT/s.

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