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A-Tech 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 ECC-UDIMM 2Rx8 (EC4 9x4) Dual Rank 1.1V ECC Unbuffered DIMM 288-Pin Server, Workstation RAM Memory Upgrade Modules
A-Tech

A-Tech 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 ECC-UDIMM 2Rx8 (EC4 9x4) Dual Rank 1.1V ECC Unbuffered DIMM 288-Pin Server, Workstation RAM Memory Upgrade Modules

Bottom line: The A-Tech 128GB Kit is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ ECC Unbuffered UDIMM; 2Rx8 - Dual Rank x8 (EC4, 9x4); JEDEC DDR5 standard 1.1V
  • ✓ Backed by A-Tech's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

SpecPicks Verdict

SpecPicks scored A-Tech 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 ECC-UDIMM 2Rx8 (EC4… using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. A-Tech's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • A-Tech RAM Memory compatible for select DDR5 Servers & Workstations ONLY; (*NOT COMPATIBLE WITH Desktop/Laptop Computers or PCs of any kind*)
  • 128 GB RAM Kit (4 x 32GB Modules); DDR5 DIMM 288-Pin; Speeds up to 4800 MHz, PC5-38400 (PC5-4800B)
  • ECC Unbuffered UDIMM; 2Rx8 - Dual Rank x8 (EC4, 9x4); JEDEC DDR5 standard 1.1V
  • Improves system performance, workload capacity, and reduces bottlenecks by increasing memory (RAM) resources
  • Note: This memory is ECC Unbuffered and cannot be mixed with different ECC types such as ECC Registered, ECC Load Reduced, or Non-ECC Unbuffered; (Memory compatibility can vary among different system models and their installed components; please verify compatibility and follow memory channel guidelines to ensure maximum performance)
  • Each A-Tech memory module is built and tested for superior performance and trusted reliability

Full Specifications

BrandA-Tech
Voltage1.1 volts
RAM Size128 GB
Unit Count4 Count
Form FactorDIMM
Memory Speed4800 MHz
Model NumberAT32G4D5D4800ED8EC4N11V
Number of Pins288
Mfr Part NumberAT32G4D5D4800ED8EC4N11V
Number of Items4
Memory GenerationDDR5
Compatible DevicesServer, Workstation
Data Transfer Rate38400 megabytes_per_second
Memory Form FactorUDIMM
Additional FeaturesECC Unbuffered, Ecc
Computer Memory Size128 GB
Warranty DescriptionLimited Lifetime Warranty covering defects in materials and workmanship
RAM Memory TechnologyDDR5
Column Address Strobe LatencyCL40

Ready to buy?

A-Tech 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 ECC-UDIMM 2Rx8 (EC4 9x4) Dual Rank 1.1V ECC Unbuffered DIMM 288-Pin Server, Workstation RAM Memory Upgrade Modules is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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