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Green printed circuit board with black memory chips and gold edge contacts, 288-pin DDR4 RDIMM module

A-Tech

A-Tech 32GB DDR4 2133 ECC RDIMM 2Rx4 Server Memory

SKU CH-SANJ-F3WNN

32 GB DDR4 2133 MHz ECC registered DIMM with Samsung chipset, CL15 latency and 1.2 V operation

  • Capacity32GB
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 32GB capacity expands server memory for heavier workloads
  • DDR4 2133 speed delivers PC4-17000 bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors to protect data integrity
  • 2Rx4 organisation with Samsung chipset ensures stable signal quality
  • 20V operation at CL15 latency reduces power draw per module

Server Memory Upgrade

This A-Tech module provides 32GB of DDR4 2133 ECC registered memory for servers and workstations. It replaces Samsung M393A4K40BB0-CPB0Q and M393A4K40BB0-CPB4Q parts with a compatible 2Rx4 design. The single stick adds capacity to systems that require registered DIMMs with error correction.

Build Integration

The 288-pin DIMM operates at the standard 1.20V DDR4 voltage and carries a CL15 latency rating. It fits DDR4 RDIMM slots in compatible server or workstation motherboards. The registered buffer reduces electrical load on the memory controller, freeing headroom for larger memory populations.

Upgrade Context

This module upgrades systems running lower-capacity or non-ECC DDR4 memory where data integrity and registered signalling are required. The jump is worth it when workloads demand 32GB per slot with error correction and the platform supports DDR4 2133 registered DIMMs.

Highlights

  • 32GB capacity expands server memory for heavier workloads
  • DDR4 2133 speed delivers PC4-17000 bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors to protect data integrity
  • 2Rx4 organisation with Samsung chipset ensures stable signal quality
  • 20V operation at CL15 latency reduces power draw per module

Specifications

BrandA-Tech
SeriesCompatible Replacement for Samsung
ModelM393A4K40BB0-CPB0Q, M393A4K40BB0-CPB4Q
Capacity32GB
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetSamsung Chipset
FeaturesM393A4K40BB0-CPB0Q, M393A4K40BB0-CPB4Q

Questions about this item

What is the registered CAS latency limit that appears first under sustained server workloads?

The module operates at CL15 latency, which is the timing ceiling the memory controller hits continuously during long-running tasks.

How much heat and power does a registered 32 GB DDR4 module draw at 1.2 V?

At the standard 1.20 V DDR4 voltage the DIMM runs within normal server thermal envelopes; registered buffering adds negligible extra heat.

Which DDR4 DIMM slot keying does this 288-pin RDIMM require?

It fits a standard 288-pin DDR4 registered DIMM slot; the board must support ECC RDIMM 2Rx4 modules at 2133 MHz.

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