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Four green DDR3 ECC RDIMM modules with gold contacts

A-Tech

A-Tech 32GB Kit (4x8GB) DDR3 1866 ECC RDIMM 240-Pin Mac Pro Late 2013

SKU CH-SWYW-5T1RA

A 32 GB DDR3 1866 MHz ECC registered memory kit of four 8 GB RDIMMs for the Mac Pro Late 2013

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • Designed for Mac Pro Late 2013 cylinder
  • 32GB kit with four 8GB modules
  • DDR3 1866 ECC registered RDIMM 240-pin
  • Major-brand chips tested for reliability
  • Lifetime warranty with US-based tech support

32GB DDR3 ECC RDIMM Kit

This 32GB kit contains four 8GB DDR3 1866 registered ECC modules built for the Mac Pro Late 2013 cylinder. The 240-pin RDIMMs run at 1.50V and use major-brand chips qualified for Apple order numbers ME253LL/A, MD878LL/A, MQGG2LL/A and BTO/CTO configurations.

Suits Mac Pro 6.1 owners needing 32GB

Buyers with a Mac Pro 6,1 who want a matched 32GB set of registered ECC memory will install this kit directly. Systems that require unbuffered UDIMMs, non-ECC modules, a different DDR generation or a capacity other than 32GB cannot use these sticks.

DDR3 1866 Registered ECC

The decisive specification is the DDR3 1866 registered ECC RDIMM form factor, which matches the Mac Pro Late 2013 memory controller. Only Macs that accept this exact module type and speed will recognise the full 32GB capacity.

How it compares

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

Price $113.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $3.56 per GB
Cheaper than about 87% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity32 GB (4 × 8 GB)
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Will the registered ECC RDIMM modules need any firmware updates or periodic replacement?

The modules are hardware components with no firmware to update and no scheduled replacement interval; they remain in service until a module fails.

What sustained-use limit appears first — thermal throttling or memory bandwidth saturation?

Without heat spreaders the chips rely on case airflow, so thermal limits will appear before the DDR3-1866 bandwidth ceiling is reached.

How much extra heat and power do the four 1.50 V RDIMMs add when the Mac Pro runs all day?

Each module draws 1.50 V at DDR3-1866 speeds; total added heat equals the combined power draw of the four registered DIMMs under continuous load.

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