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Four green DDR4 server DIMMs, 288-pin, black chips, silver contacts

A-Tech

A-Tech 128GB (4x32GB) DDR4 2133 ECC LRDIMM 4Rx4 Server RAM

SKU CH-Q87V-JGSCC

A 128 GB quad-channel kit of four 32 GB DDR4 2133 ECC LRDIMM modules with CL15 latency and 1.2 V operation

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity across four 32 GB modules
  • Load Reduced ECC design improves signal integrity on dense servers
  • Quad-rank 4Rx4 organisation maximises density per DIMM slot
  • DDR4 2133 MHz speed with CL15 latency at standard 1.2 V
  • 288-pin DIMM form factor built for DDR4 server and workstation platforms

128GB DDR4 2133 ECC LRDIMM Kit

This 128GB kit contains four 32GB DDR4 2133 ECC Load Reduced DIMMs. Each module is a 288-pin 4Rx4 quad-rank unit operating at 1.20V with CL15 latency. The kit is built for servers and workstations that require registered ECC memory.

Suited for DDR4 servers needing 4Rx4 LRDIMMs

This memory fits platforms that specifically support DDR4 ECC Load Reduced DIMMs in a quad-rank x4 organisation. It will not work in desktop or laptop computers. Builders whose systems accept only standard registered DIMMs or non-ECC modules should look elsewhere.

Quad-rank 4Rx4 organisation decides compatibility

The 4Rx4 rank structure is the critical specification; the motherboard and CPU memory controller must explicitly support 4Rx4 Load Reduced DIMMs. If the platform qualifies only for single-rank, dual-rank or standard registered modules, this kit will not function.

How it compares

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

Price $299.99
Pricier than about 61% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $2.34 per GB
Cheaper than about 92% 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 name32 GB 4Rx4 PC4-2133P-L
Total capacity128 GB (4 × 32 GB)
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4 (4DRx4)
Kit configurationQuad Channel Kit
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

How do I install these 288-pin DDR4 LRDIMMs in a quad-channel server, and which step is most often missed?

Power down, open the chassis, align each module's notch with the slot key, press firmly until both retention clips click, then populate all four channels per the motherboard manual to activate quad-channel mode.

What maintenance or replacement will this 128GB 4Rx4 ECC kit need over its service life?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and modules are replaced only if the system logs uncorrectable errors or a DIMM fails POST.

What limit appears first when these 1.20V CL15 modules run sustained workloads?

The 2133 MT/s data rate and four-rank electrical loading per channel set the throughput ceiling before voltage or thermal limits are reached.

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