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Two green DDR4 ECC RDIMM sticks with gold contacts on a plain background

A-Tech

A-Tech 16GB Kit (2x8GB) DDR4 2666 ECC RDIMM memory upgrade for Mac Pro 2019

SKU CH-PZWW-G6G4F

A 16 GB DDR4 2666 MHz ECC RDIMM kit for the 2019 Mac Pro tower or rack

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • 16 GB dual-channel kit adds capacity for heavy workloads
  • DDR4 2666 MHz speed matches Mac Pro 2019 specification
  • ECC registered design protects data integrity on Xeon systems
  • 288-pin RDIMM form factor fits MacPro7,1 slots
  • Lifetime warranty backed by US-based technical support

Mac Pro 2019 memory kit

This 16GB kit contains two 8GB DDR4 2666 ECC RDIMM modules built for the 2019 Mac Pro 8-Core in both tower and rack configurations. It targets professionals who need to expand system memory for heavier workloads on Apple’s Xeon workstation platform.

ECC RDIMM 288-pin requirement

The modules use registered ECC DDR4 at 2666 MHz with a 288-pin RDIMM form factor, which is the only memory type the Mac Pro 7,1 architecture accepts. Standard unbuffered DIMMs will not function in this system.

Lifetime warranty and US support

A-Tech backs the kit with a lifetime warranty and provides complimentary United States based technical support before, during and after purchase, giving buyers direct assistance for installation or troubleshooting.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $107.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.75 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Apple Mac RAM Memory Upgrades
Total capacity16 GB (2 × 8 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

What does the 2666 MHz speed mean for my Mac Pro 2019?

The modules run at DDR4-2666, the native memory clock for the 2019 Mac Pro, so the system operates at its rated throughput without downclocking.

How does the ECC RDIMM interface affect compatibility?

The kit uses 288-pin registered ECC DDR4, which is the exact module type the Mac Pro 2019 memory slots require; non-registered or non-ECC DIMMs will not work.

What physical clearance do the 8 GB modules need inside the Mac Pro?

Each stick is a standard-height 288-pin RDIMM and fits the Mac Pro 2019 DIMM slots without interfering with the CPU heatsink or fan assembly.

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