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Green rectangular DDR4 DIMM module with gold edge contacts and black chips, 288 pins, 128GB capacity

A-Tech

A-Tech 128GB DDR4 2666 ECC RDIMM 2S4Rx4 1.2V Server Memory

SKU CH-D4PC-7TWAK

A 128 GB DDR4 2666 registered ECC DIMM for server workloads needing high capacity and error correction

  • Capacity128GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 128GB capacity expands server memory for heavy workloads
  • DDR4 2666MHz speed delivers PC4-21300 bandwidth for data-intensive tasks
  • ECC registered design corrects errors to protect data integrity
  • 2V operation matches DDR4 standard voltage for efficient power use
  • 2S4Rx4 8Rx4 3DS/TSV architecture enables high-density 128GB module

Server Memory Upgrade

This A-Tech module delivers 128GB of DDR4 2666MHz registered ECC memory in a single 288-pin DIMM. It is built for servers and workstations that require error-correcting, buffered modules to maintain data integrity under heavy workloads. The 2S4Rx4 organisation with 3DS/TSV stacking enables this high density on one stick.

Registered ECC Design

The module operates at the standard 1.2V DDR4 voltage with CL19 latency and a registered buffer that reduces electrical load on the memory controller. Registered ECC RDIMM architecture suits multi-socket platforms where signal integrity and error detection are critical for uptime. A 262-pin form factor matches the mechanical slot specification for compatible systems.

Capacity Expansion Path

This part replaces IBM-Lenovo 7X77A01307 and 01DE977 modules, letting administrators add 128GB per slot without populating multiple lower-density DIMMs. The jump is worthwhile when the platform supports 3DS/TSV registered DIMMs and the application benefits from fewer occupied slots for future scaling. Buyers needing non-ECC unbuffered memory or lower voltages should look elsewhere.

I korthet

  • 128GB capacity expands server memory for heavy workloads
  • DDR4 2666MHz speed delivers PC4-21300 bandwidth for data-intensive tasks
  • ECC registered design corrects errors to protect data integrity
  • 2V operation matches DDR4 standard voltage for efficient power use
  • 2S4Rx4 8Rx4 3DS/TSV architecture enables high-density 128GB module

Specifikationer

BrandA-Tech
SeriesCompatible Replacement for IBM-Lenovo
Model7X77A01307, 01DE977
Capacity128GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S4Rx4 (8Rx4)
ChipsetMajor Brand Chipset
Features7X77A01307, 01DE977

Frågor om den här produkten

What speed does the DDR4 2666 interface cap at in practice?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency, so the practical data rate is 2666 MT/s.

What physical slot and pin count does this 288-pin DIMM require?

It fits a standard DDR4 DIMM slot with 288 pins; the form factor is listed as DIMM (262 Pin) in the specifications.

How is the module installed and what step do people often miss?

Align the notch on the 288-pin DIMM with the slot key, press firmly until both side clips click, and verify the system recognises the full 128GB capacity.

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