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Four green DDR3 240-pin ECC RDIMM modules in static bags

A-Tech

A-Tech 16GB Kit (4x4GB) DDR3 1333 ECC RDIMM Mac Pro 2010/2012 memory upgrade

SKU CH-1W6R-8BR51

16 GB kit of four 4 GB DDR3 1333 MHz ECC registered DIMMs for 2010 and 2012 Mac Pro towers

  • Total capacity16 GB (4 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • 16 GB total capacity in four 4 GB modules
  • DDR3 1333 MHz PC3-10600 registered ECC for data integrity
  • 240-pin RDIMM form factor fits Mac Pro 2010/2012
  • Certified compatible with MacPro5,1 and order MD771LL/A
  • Lifetime warranty with US-based technical support included

Designed for Mac Pro 2010 and 2012

This 16 GB kit contains four 4 GB DDR3 1333 registered ECC DIMMs built for the Mac Pro Mid 2010 and Mid 2012 models with 6-core or 12-core Xeon processors. It matches the Apple order numbers MD771LL/A and the MacPro5,1 model identifier. The modules run at 1.50 V and use major-brand chips on a 240-pin RDIMM form factor.

Suits owners of compatible Mac Pro towers

The kit fits Mac Pro towers listed as A1289 (EMC 2314-2 and EMC 2629) running the specified Xeon CPUs at 2.4, 2.66, 2.93, 3.06 and 3.33 GHz. It is not for users whose Mac Pro is a different model year or a different model identifier. It is also not for systems that require unbuffered memory or non-ECC modules.

Registered ECC RDIMM requirement

The Mac Pro 5,1 memory controller requires registered ECC DDR3 DIMMs; unbuffered or non-ECC sticks will not work. This kit provides exactly that 2Rx4 registered ECC specification at PC3-10600 speed. Verify your Mac Pro model identifier before purchase.

How it compares

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

Price $87.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (4 × 4 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $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 DDR3 Apple Mac RAM Memory Upgrades
Total capacity16 GB (4 × 4 GB)
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

How can I confirm the 16GB kit is running at DDR3 1333MHz with ECC after installation?

Open About This Mac → System Report → Memory and verify each slot shows a 4GB DDR3 ECC RDIMM at 1333 MHz; the total should read 16GB.

What does the kit include and is anything else required for the Mac Pro?

The box contains four 4GB DDR3 1333 ECC registered 240-pin RDIMMs; no additional parts are needed for the listed Mac Pro models.

Which capacity kit should I choose for a Mac Pro 5,1 with a 2.4GHz Xeon E5645?

This 16GB (4×4GB) kit matches the four-slot configuration and is validated for the 2.4GHz Xeon E5645 in MacPro5,1.

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