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Green 288-pin DDR4 DIMM with black chips and silver heat spreader

A-Tech

A-Tech 32GB DDR4 2666 ECC RDIMM 2Rx4 Samsung M393A4K40BB2-CTD Server Memory

SKU CH-ZY4W-9XCMA

32 GB DDR4 2666 ECC registered DIMM with Samsung-compatible 2Rx4 chips for server workloads

  • Capacity32GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 32 GB capacity expands server memory headroom
  • ECC RDIMM protects data integrity with error correction
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • Registered 2Rx4 design supports high-density configurations
  • 2 V operation matches DDR4 standard voltage

32GB DDR4 2666 ECC Registered Module

This 32GB DDR4 2666 ECC RDIMM module is built for servers and workstations that require registered memory with error correction. It operates at 1.20V with a CAS latency of 19 and uses a 2Rx4 rank configuration on a 288-pin DIMM. The module serves as a direct replacement for Samsung part numbers M393A4K40BB2-CTD, M393A4K40CB2-CTD, and M393A4K40DB2-CTD.

Suited for ECC registered platforms only

This module fits systems that specifically support DDR4 ECC registered DIMMs at the 2666 speed grade. It will not work in desktop or laptop platforms that accept only unbuffered non-ECC memory, nor in servers requiring load-reduced or unregistered ECC modules. Buyers whose hardware demands a different voltage, pin count, or rank structure must select a different part.

Registered ECC with 2Rx4 organisation

The defining specification is the registered ECC design combined with a 2Rx4 rank layout, which determines compatibility with the memory controller and motherboard slot population rules. Verifying that the target system requires registered ECC RDIMMs and supports this rank configuration is the single step that confirms whether this module is the correct part.

Points forts

  • 32 GB capacity expands server memory headroom
  • ECC RDIMM protects data integrity with error correction
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • Registered 2Rx4 design supports high-density configurations
  • 2 V operation matches DDR4 standard voltage

Caractéristiques

BrandA-Tech
Capacity32GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

How do I install this 288-pin DDR4 RDIMM and what step is often missed?

Align the notch on the module with the slot key, press firmly until both side clips click, and ensure the registered buffer is seated before tightening the retention lever.

What maintenance or replacement will this 32GB ECC module need over time?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and the module should only be replaced if multi-bit errors appear in system logs.

What limit appears first when this CL19 2666MHz kit runs sustained workloads?

The CL19 latency at 1.20V sets the throughput ceiling; sustained bandwidth maxes out at the PC4-21300 rating before thermal throttling becomes a factor.

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