We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular circuit board with gold edge connector and black memory chips

A-Tech

A-Tech 128GB DDR4 2666MHz PC4-21300 ECC LRDIMM 288-Pin Server Memory

SKU CH-Q7EC-08JN2

128GB DDR4 2666MHz ECC LRDIMM module with CL15 latency and 1.2V operation for server memory expansion

  • Total capacity128 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 128GB capacity enables large virtualised workloads
  • DDR4 2666MHz speed delivers high data throughput
  • ECC load-reduced design corrects errors while lowering electrical load
  • CL15 latency provides responsive server performance
  • 20V operation reduces power draw per module

128GB DDR4 ECC LRDIMM server upgrade

This 128GB DDR4 2666MHz ECC Load Reduced DIMM is built for servers that require registered memory with error correction. It replaces Micron part numbers MTA144ASQ16G72LSZ-2S6, MTA144ASQ16G72LSZ-2S6E1 and MTA144ASQ16G72LSZ-2S6G1 in compatible systems. The module operates at 1.2V with a CL15 latency rating.

Sustained load behaviour with 8Rx4 3DS stacking

The 8Rx4 3DS/TSV organisation spreads addressing across sixteen logical ranks to keep the memory controller busy during long-running workloads. Load Reduced buffering reduces electrical loading on the bus so signal integrity holds steady when all ranks are active. ECC corrects single-bit errors on the fly without halting the server.

Verify LRDIMM support and slot population rules

Confirm the motherboard and CPU memory controller list LRDIMM as a supported module type before ordering. Check the maximum capacity per slot and the allowed rank population for your specific server model. Ensure the firmware revision recognises 128GB 2S4Rx4 modules at 2666MHz.

How it compares

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

Price $596.99
Pricier than about 73% 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 $4.66 per GB
Cheaper than about 76% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineMicron RAM Equivalent Replacement Memory
Model nameMTA144ASQ16G72LSZ-2S6, MTA144ASQ16G72LSZ-2S6E1, MTA144ASQ16G72LSZ-2S6G1
Part numberMTA144ASQ16G72LSZ-2S6, MTA144ASQ16G72LSZ-2S6E1, MTA144ASQ16G72LSZ-2S6G1
Total capacity128 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S4Rx4 (8Rx4)
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How much power does the 1.20V 128GB DDR4 2666MHz LRDIMM draw when the server runs all day?

The module operates at the standard DDR4 1.20V voltage; actual power draw depends on the server's memory controller and workload, so consult the platform documentation for precise figures.

What must my motherboard already support to use this 288-pin ECC LRDIMM?

The board needs DDR4 LRDIMM slots, a memory controller that handles 128GB 2S4Rx4 (8Rx4) modules at 2666MHz, and BIOS/firmware that enables ECC and load-reduced operation.

Will this 128GB PC4-21300 LRDIMM work alongside my existing 16GB DDR4 RDIMMs in the same server?

Mixing LRDIMM and RDIMM types is not supported on most platforms; the system typically requires all slots to use the same registered or load-reduced technology for stable operation.

More in ECC Server RAM

Similar items