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Green circuit board with black memory chips and gold contacts

A-Tech

A-Tech 32GB DDR4 3200 ECC RDIMM 2Rx4 Samsung M393A4K40BB2-CWE M393A4K0DB3-CWE Server Memory

SKU CH-C54F-1J47K

A 32 GB DDR4 3200 ECC registered DIMM with Samsung chips, CL22 latency and 1.2 V operation for server and workstation upgrades

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetSamsung Chipset
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 32GB capacity expands server memory headroom
  • DDR4 3200 speed accelerates data throughput
  • ECC RDIMM protects data integrity under load
  • 2Rx4 rank optimises density per channel
  • 20V operation reduces power draw

32GB DDR4 3200 ECC RDIMM Server Memory

This 32GB A-Tech module is a compatible replacement for Samsung M393A4K40BB2-CWE and M393A4K0DB3-CWE. It runs at DDR4 3200 with CL22 latency and 1.20V operation. The registered DIMM includes ECC for error correction in server and workstation environments.

Suited for systems requiring registered ECC memory

Buyers needing non-ECC unbuffered memory for consumer desktops or laptops should look at something else. This module is built for platforms that support registered DIMMs and ECC functionality. Verify your motherboard or server documentation before purchase.

Registered ECC with 2Rx4 organisation

The 2Rx4 rank configuration and registered buffer define compatibility with specific server chipsets and memory controllers. Match these parameters exactly to the system's qualified vendor list to ensure stable operation.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $267.99
Pricier than about 58% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $8.37 per GB
Pricier than about 60% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Samsung
Model nameM393A4K40BB2-CWE, M393A4K0DB3-CWE
Total capacity32 GB
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

How much power does the 1.20 V DDR4 3200 ECC RDIMM draw when the server runs continuously?

The module operates at the standard DDR4 voltage of 1.20 V, which keeps power draw low during sustained workloads.

What must the motherboard provide for this 288-pin registered DIMM to function?

The board needs a DDR4 RDIMM slot that supports ECC, registered operation, and 2Rx4 organisation at 3200 MT/s.

Can this CL22 3200 module share a channel with slower DDR4 DIMMs already in the system?

Yes — the memory controller will run all modules at the lowest common speed and latency, so mixing is possible.

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