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Two green DDR4 LRDIMM modules, 288-pin, no heat spreader

A-Tech

A-Tech 256GB (2x128GB) DDR4 2933 ECC LRDIMM 4Rx4 server RAM

SKU CH-E0PQ-D7NRF

256 GB dual-channel DDR4 2933 ECC LRDIMM kit with two 128 GB quad-rank modules at CL21 and 1.2 V

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity with two 128 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC load-reduced design detects and corrects data errors
  • Quad-rank 4Rx4 organisation increases density per module
  • Standard 1.2 V DDR4 voltage for efficient operation

Capacity and kit configuration

This A-Tech kit delivers 256 GB of DDR4 server memory in two 128 GB LRDIMM modules. It is built for enterprise servers and workstations that require high-density registered ECC memory. The quad-rank 4Rx4 organisation allows large capacities per slot while maintaining standard 1.20 V operation.

Upgrade path from lower-density RDIMMs

Moving from standard registered DIMMs to these load-reduced modules lets you populate more slots at higher densities without exceeding the memory controller's electrical load limits. The jump is worthwhile when your workload demands more than 128 GB per channel and the platform Qualified Vendor List includes 4Rx4 LRDIMMs at 2933 MHz.

Compatibility checks before ordering

Confirm that your server or workstation explicitly supports DDR4 2933 LRDIMMs in a 4Rx4 configuration and that the BIOS revision lists this part number. Verify the correct slot population order for dual-channel operation and ensure the memory controller can address quad-rank modules at the rated speed.

How it compares

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

Price $1,840.99
Pricier than about 86% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $7.19 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Server Memory RAM
Model nameA-Tech 256 GB (2 × 128 GB) 4Rx4 PC4-2933Y-L
Part numberNE-SS-0713
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4 / 4DRx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Will these 288-pin LRDIMM modules fit my server's DDR4 memory slots?

Yes, they are 288-pin DDR4 DIMMs designed for servers and workstations that support load-reduced memory; they will not fit desktop or laptop slots.

What is the correct way to seat both 128GB modules for dual-channel operation?

Install one module per memory channel following the motherboard manual's population order; the common mistake is placing both sticks in the same channel, which forces single-channel mode.

How can I tell when a 4Rx4 module needs replacement?

ECC will log correctable errors in the system event log; a rising count or uncorrectable errors reported by the OS or BIOS indicates the module should be swapped.

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