We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two black DDR4 LRDIMM modules with gold contacts and silver heat spreaders

A-Tech

A-Tech 256GB Kit (2x128GB) DDR4 2933 ECC LRDIMM for Mac Pro 2019

SKU CH-XW1T-DAG4N

A 256 GB DDR4 2933 ECC LRDIMM kit built for 2019 Mac Pro 24-core and 28-core models

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Compatible systemsApple Mac Systems
  • 256GB capacity across two 128GB modules handles heavy workloads
  • DDR4 2933MHz PC4-23400 speed matches Mac Pro 2019 specs
  • ECC Load Reduced design protects data integrity on Xeon systems
  • 288-pin LRDIMM form factor fits MacPro7,1 tower and rack
  • Lifetime warranty with US-based tech support backs every kit

256GB DDR4 2933 ECC LRDIMM Kit

This 256GB kit contains two 128GB modules built to DDR4 2933 (PC4-23400) with ECC Load Reduced technology. It is designed for Apple Mac Pro 2019 tower and rack models carrying 24-core or 28-core Xeon processors.

Suited for 24-core and 28-core Mac Pro 2019

Buyers with a MacPro7,1 (A1991 or A2304) running a 2.5GHz Xeon W-3275M or 2.7GHz Xeon W-3265M can install this kit directly. Systems with lower core counts, earlier Mac Pro generations, or non-Apple workstations cannot use these modules.

ECC Load Reduced LRDIMM specification

The modules operate at 1.20V as 288-pin LRDIMMs with a 2S4Rx4 rank structure. This specific ECC Load Reduced form factor is the single requirement that determines compatibility with the target Mac Pro memory architecture.

How it compares

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

Price $1,976.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.72 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Apple Mac RAM Memory Upgrades
Total capacity256 GB (2 × 128 GB)
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeLoad Reduced
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

How do I install the 288-pin DDR4 LRDIMM modules into the Mac Pro 2019 memory slots?

Power down the Mac Pro 2019, open the enclosure, and press each 288-pin LRDIMM firmly into an empty slot until the ejectors click. The common mistake is stopping before the full click, leaving the module partially seated.

Will the ECC Load Reduced chips or major-brand chipset need replacement during the system's life?

The ECC LRDIMM modules use major-brand chips tested to stringent standards and carry a lifetime warranty. No scheduled chipset or memory replacement is required under normal operation.

At what point does the 1.20V voltage or 2933 MHz speed become the limiting factor under sustained heavy workloads?

The memory runs at a fixed 1.20V and 2933 MHz (PC4-23400). Under sustained load the first limit encountered is the Mac Pro's thermal management, which may throttle CPU frequency before memory voltage or speed becomes a bottleneck.

More in Model-Specific Memory Upgrades

Similar items