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Four green DDR4 RDIMM sticks with black chips, no heat spreaders

A-Tech

A-Tech 64GB (4x16GB) DDR4 2666MHz ECC RDIMM 288-Pin Memory Upgrade

SKU CH-5VDW-RDR48

64 GB kit of four 16 GB DDR4 2666 MHz ECC registered DIMMs for iMac Pro (Late 2017)

  • Capacity64GB (4 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • Rank2Rx8
  • 64 GB total capacity with four 16 GB modules
  • DDR4 2666 MHz speed for faster data transfer
  • ECC registered design detects and corrects memory errors
  • 288-pin RDIMM form factor fits compatible Apple iMac Pro systems
  • 20 V low voltage operation reduces power consumption

A-Tech 64GB DDR4 ECC RDIMM Kit

This 64GB kit contains four 16GB DDR4 2666MHz ECC Registered DIMM modules built for the Apple iMac Pro (Late 2017). It targets professionals who need maximum memory capacity for demanding workloads such as video editing, 3D rendering, or virtualisation on this specific workstation platform.

Upgrading from lower-capacity factory memory

The kit replaces the original lower-density modules to reach the full 64GB supported by the iMac Pro (Late 2017). The jump is worthwhile when your current memory limits multitasking or causes excessive swapping during heavy creative or computational tasks.

Tool-free installation with slot population care

Installation requires opening the iMac Pro chassis and seating each 288-pin RDIMM into the four available slots until the latches click. The most common issue is incomplete insertion or mixing module ranks, which can prevent the system from recognising the full 64GB capacity.

Highlights

  • 64 GB total capacity with four 16 GB modules
  • DDR4 2666 MHz speed for faster data transfer
  • ECC registered design detects and corrects memory errors
  • 288-pin RDIMM form factor fits compatible Apple iMac Pro systems
  • 20 V low voltage operation reduces power consumption

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity64GB (4 x 16GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions about this item

Will the 288-pin RDIMM modules fit the iMac Pro Late 2017 memory slots?

Yes, the 288-pin DDR4 RDIMM form factor matches the iMac Pro (Late 2017) memory slots exactly.

What is the correct order to install the four 16GB modules in the iMac Pro?

Install one module in each of the four slots; the common mistake is leaving a slot empty or mixing capacities, which prevents the system from recognising the full 64GB.

When should the ECC registered memory be tested or replaced in this iMac Pro?

Run a memory diagnostic if the system shows unexpected reboots or data errors; ECC registered modules rarely fail, but a lifetime warranty covers replacement if errors persist.

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