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Four green DDR4 LRDIMM modules with black chips and silver contacts

A-Tech

A-Tech 256GB Kit (4x64GB) DDR4 2933 ECC LRDIMM memory upgrade

SKU CH-T68Z-1FRKG

256GB kit of four 64GB DDR4 2933 ECC load-reduced DIMMs for 2019 Mac Pro 12, 16, 24 and 28-core models

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 2933 (PC4 23400)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor Brand Chipset
  • 256 GB total capacity for heavy multitasking and large datasets
  • Four 64 GB DDR4 2933 MHz modules fill the Mac Pro slots
  • ECC load-reduced design protects data integrity on Xeon workstations
  • Validated for Mac Pro 2019 models with 12, 16, 24 and 28-core Xeon CPUs
  • 288-pin LRDIMM form factor installs directly in Apple Mac Pro (2019) systems

Mac Pro 2019 memory kit

This 256 GB kit contains four 64 GB DDR4 2933 LRDIMM modules built for the 2019 Mac Pro in 12, 16, 24 and 28 core configurations. ECC load-reduced design targets professional workloads that demand data integrity. The kit is validated for MacPro7,1 systems with model identifiers A2304 and A1991.

Check your Mac Pro model

Verify that the machine is a 2019 Mac Pro Rack or Tower running a compatible Xeon W processor such as the 2.5 GHz W-3275M, 2.7 GHz W-3265M, 3.2 GHz W-3245 or 3.3 GHz W-3235. The memory slots accept 288-pin LRDIMMs at 1.20 V; other form factors or voltages will not fit. Buyers with earlier Mac Pro models or non-Xeon configurations cannot use this kit.

Build quality and daily use

Modules use major-brand chips and undergo rigorous testing to meet strict quality standards. The 288-pin LRDIMM connector seats firmly in the Mac Pro memory bays, and the load-reduced topology helps maintain signal integrity across all four slots. ECC protection corrects single-bit errors automatically during long rendering or compute sessions.

Highlights

  • 256 GB total capacity for heavy multitasking and large datasets
  • Four 64 GB DDR4 2933 MHz modules fill the Mac Pro slots
  • ECC load-reduced design protects data integrity on Xeon workstations
  • Validated for Mac Pro 2019 models with 12, 16, 24 and 28-core Xeon CPUs
  • 288-pin LRDIMM form factor installs directly in Apple Mac Pro (2019) systems

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity256GB (4 x 64GB)
SpeedDDR4 2933 (PC4 23400)
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions about this item

Does the 256GB kit ship as four 64GB modules or do I need to buy extra sticks?

The kit contains four 64GB DDR4 2933 LRDIMM modules, giving 256GB total with nothing else to purchase.

Which of the listed Mac Pro core counts — 12, 16, 24 or 28 — is this memory certified for?

It is certified for every 2019 Mac Pro Rack and Tower model from the 12‑core Xeon W‑3235 up to the 28‑core Xeon W‑3275M.

What does the 2933MHz speed mean once installed in a 2019 Mac Pro?

The modules run at DDR4‑2933 (PC4‑23400) with ECC load‑reduced operation, matching the Mac Pro’s native memory bus for full bandwidth and error correction.

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