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Six green DDR3 RDIMM sticks with gold contacts in a row

A-Tech

A-Tech 24GB (6x4GB) DDR3 1333 ECC RDIMM memory upgrade for Mac Pro 12-Core 2010/2012

SKU CH-5XCV-BPY0Z

A 24GB kit of six 4GB DDR3 1333 ECC registered DIMMs for 12-core Mac Pro models from 2010 and 2012

  • Total capacity24 GB (6 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • 24 GB total capacity across six 4 GB modules
  • DDR3 1333 MHz PC3-10600 speed for faster data handling
  • ECC registered design detects and corrects memory errors
  • Certified for Mac Pro 12-Core 2010 and 2012 models
  • Lifetime warranty with US-based technical support included

Mac Pro 12-Core 2010/2012 memory kit

This 24GB kit contains six 4GB DDR3 1333 ECC registered DIMMs built for the Mac Pro 12-Core models from 2010 and 2012. It matches the Apple order number MD771LL/A and model identifier MacPro5,1. The modules run at 1.50V and use major-brand chips validated for those systems.

Replaces smaller DDR3 ECC kits

The kit upgrades a Mac Pro 12-Core that shipped with less memory or that has older DDR3 modules installed. The jump is worth it when the workload needs more than the current capacity allows, such as virtualisation, large media projects or heavy multitasking on the supported Xeon 2.4GHz, 2.66GHz, 2.93GHz or 3.06GHz processors.

Verify Mac Pro model and slot count

Confirm the machine is a Mac Pro 12-Core from Mid 2010 or Mid 2012 with model ID MacPro5,1 and order number MD771LL/A. Ensure all six 240-pin slots are free or that you are replacing the full set, because this kit fills every slot. The system must accept DDR3 1333 ECC registered memory at 1.50V.

How it compares

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

Price $133.99
Cheaper than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 24 GB (6 × 4 GB)
Lower than about 65% of the 20,941 comparable items (median 32 GB).
Price per GB $5.58 per GB
Cheaper than about 69% 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 capacity24 GB (6 × 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

Will these 240-pin RDIMM modules fit the Mac Pro 5,1 memory slots?

Yes, the 6 modules are 240-pin DDR3 RDIMMs built for the Mac Pro 5,1 (Mid 2010/2012, 12-Core) memory tray.

Do I need to install the six 4GB sticks in matched triplets for the 12-core Xeon memory controller?

Populate all six slots — three per processor — with identical 2Rx4 modules so each Xeon sees a matched three-channel set.

If a module fails years from now, can I replace just one 4GB stick or must I swap the full 24GB kit?

Each 4GB module carries a lifetime warranty, so a single stick can be exchanged without returning the whole kit.

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