A-Tech 128GB DDR4 2666MHz ECC LRDIMM Micron MTA144ASQ16G72LSZ-2S6G1QG Server Memory
128 GB DDR4 2666 MHz ECC load-reduced DIMM for server and workstation upgrades
- Total capacity128 GB
- Rated speedDDR4 2666 (PC4 21300)
- ChipsetMicron Chipset
- CAS latencyCL19
- Rated voltage1.2 V
- Buffer typeLoad Reduced
- 128 GB capacity expands server memory headroom for heavy workloads
- DDR4 2666 MHz speed delivers high data throughput for demanding applications
- ECC LRDIMM technology corrects errors and reduces electrical load on the memory bus
- CL19 latency at 1.2 V balances responsive timing with standard DDR4 power efficiency
- 288-pin DIMM form factor fits compatible DDR4 server and workstation motherboards
128GB DDR4 2666MHz ECC LRDIMM
This single 128GB module provides high-capacity DDR4 memory for servers and workstations that require error-correcting code and load-reduced DIMM technology. It targets administrators upgrading compatible Micron-based platforms where maximum density per slot is a priority. The registered design helps maintain signal integrity on heavily populated memory buses. Systems needing non-ECC or standard unbuffered DIMMs cannot use this module.
128GB capacity with 2666MHz speed
The module delivers 128GB of addressable memory at 2666MHz (PC4-21300) with a CAS latency of 19. Eight logical ranks (2S4Rx4) implemented through 3DS/TSV stacking allow this density within a standard 288-pin form factor. Workloads such as large in-memory databases, virtualization hosts, and high-thread-count compute nodes benefit from the expanded headroom. Applications that exceed 128GB per channel or require faster clock rates will hit the module's frequency and density ceiling.
1.20V operation for thermal efficiency
Operating at the standard DDR4 voltage of 1.20V, the LRDIMM architecture reduces electrical loading on the memory bus compared to conventional registered DIMMs of similar rank count. Lower loading translates to reduced power draw per gigabyte and less heat generated under sustained server workloads. The cooler operation helps maintain stable frequencies in dense chassis configurations where airflow per module is limited. No active cooling or specialised airflow beyond standard server guidelines is required.
How it compares
Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.
- Price $604.99
- 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 $4.73 per GB
- Cheaper than about 75% of the 6,064 comparable items (median $7.25 per GB).
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Specifications
| Product | |
|---|---|
| Brand name | A-Tech |
| Product line | Compatible Replacement for Micron |
| Model name | MTA144ASQ16G72LSZ-2S6G1QG |
| Total capacity | 128 GB |
| Performance | |
| Rated speed | DDR4 2666 (PC4 21300) |
| Processor | |
| Chipset | Micron Chipset |
| Memory | |
| CAS latency | CL19 |
| ECC support | Yes |
| Buffer type | Load Reduced |
| Memory rank | 2S4Rx4 (8Rx4) |
| Power | |
| Rated voltage | 1.2 V |
Questions about this item
Will this 128GB DDR4 2666MHz LRDIMM operate alongside existing DDR4 2666MHz RDIMMs in the same server?
Mixing Load Reduced DIMMs with standard Registered DIMMs is not supported by server platforms; all slots must use the same memory type for the system to initialise correctly.
How can I confirm the module is running at DDR4 2666MHz with ECC active after installation?
Enter the server BIOS or use a hardware information utility; the memory summary should show 2666 MT/s, 128GB capacity, ECC enabled, and a voltage reading of 1.2V.
Does the package include only the 288-pin LRDIMM or are any brackets, cables or software licences supplied?
The box contains the single 128GB DDR4 2666MHz ECC LRDIMM module only; no mounting brackets, cables or software licences are included.
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