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A green 288-pin DDR4 server memory module with black chips, no heat spreader

A-Tech

A-Tech 128GB DDR4 3200 ECC LRDIMM 2S2Rx4 (4Rx4 3DS) server RAM

SKU CH-9ZXC-V6JJB

128 GB DDR4 3200 ECC LRDIMM module with quad-rank 3DS stacking for dense server capacity

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 128GB

  • 128 GB single module expands server memory capacity
  • DDR4 3200 MHz speed accelerates data throughput
  • ECC load-reduced design corrects errors and reduces electrical load
  • 288-pin quad-rank 3DS/TSV architecture maximises density per slot
  • 2 V standard voltage ensures efficient power consumption

Server-grade 128 GB DDR4 ECC LRDIMM

This module delivers 128 GB of DDR4 3200 memory in a single 288-pin load-reduced DIMM. It targets administrators upgrading compatible servers or workstations that require ECC error correction and quad-rank 3DS/TSV organisation. The 1.2 V operating voltage matches the DDR4 standard for this density. Desktop and laptop platforms cannot use this module.

Quad-rank 3DS stacking enables the 128 GB density

The 2S2Rx4 (4Rx4) configuration uses through-silicon via stacking to place four logical ranks behind a reduced electrical load on the memory bus. This allows the system to address 128 GB from one slot while maintaining signal integrity at 3200 MT/s. CL22 latency and 1.20 V operation are specified for the rated speed. No heat spreader is fitted on the module.

Installation follows standard server DIMM procedures

Align the notch on the 288-pin edge connector with the slot key, press evenly until the ejector tabs lock, then verify population order in the system manual for correct channel mapping. Common issues arise when the platform BIOS does not support quad-rank LRDIMM densities or when mixed-rank configurations violate the vendor’s memory population rules.

How it compares

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

Price $1,090.99
Pricier than about 81% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $8.52 per GB
Pricier than about 61% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Server Memory RAM
Model nameA-Tech 128 GB 2S2Rx4 PC4-3200AA-L
Part numberAT128G1D4D3200LQ4N12 V
Total capacity128 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S2Rx4 (4Rx4 3DS/TSV)
Kit configurationSingle Module
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

3 more in the same range

Questions about this item

Will the 288-pin DDR4 3200 ECC LRDIMM modules need replacement due to wear?

The 128 GB DDR4 3200 CL22 1.20 V ECC LRDIMM uses major-brand chips and has no moving parts; under normal server workloads it does not wear out and requires no scheduled replacement.

What limits sustained throughput on the 128 GB quad-rank 3DS LRDIMM?

The CL22 latency at 3200 MT/s and the quad-rank 3DS topology set the bandwidth ceiling during continuous heavy loads.

How much heat and power does the 1.2 V 128 GB load-reduced DIMM produce all day?

At 1.20 V standard DDR4 voltage the module draws nominal power and runs without a heat spreader, so thermal output stays within typical server DIMM limits.

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