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Four green DDR3 RDIMM modules in anti-static tray

A-Tech

A-Tech 128GB Kit (4x32GB) DDR3 1333MHz PC3-10600 ECC RDIMM 240-Pin memory upgrade

SKU CH-0M3W-GV5XY

128GB DDR3 1333MHz ECC registered kit of four 32GB RDIMMs for Apple Mac Pro Late 2013 cylinder

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • 128 GB total capacity lets you run large workloads with four 32 GB modules
  • DDR3 1333 MHz PC3-10600 speed matches the Mac Pro specification exactly
  • ECC registered design detects and corrects memory errors for reliable operation
  • Qualified for Mac Pro Late 2013 cylinder models including A1481 and MacPro6,1
  • Lifetime warranty with US-based technical support included for peace of mind

Mac Pro Cylinder memory kit

This 128GB kit contains four 32GB DDR3 1333MHz ECC registered DIMMs built for the Apple Mac Pro (Late 2013). Each module runs at 1.50V and uses a 240-pin RDIMM form factor with major-brand chips. The memory is certified for MacPro6,1 systems and matches Apple order numbers ME253LL/A, MD878LL/A and MQGG2LL/A.

Workstations needing maximum ECC capacity

The kit suits owners of the 2013 Mac Pro cylinder who want the full 128GB supported by the four-slot architecture and require registered ECC stability for professional workloads. Buyers with standard desktop PCs or laptops cannot use registered DIMMs and should look for unbuffered memory instead.

4Rx4 rank configuration

Every module in this kit is organised as 4Rx4, a rank structure that the Mac Pro memory controller expects for 32GB registered DIMMs. Installing modules with a different rank layout can prevent the system from recognising the full capacity or cause boot failures.

How it compares

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

Price $255.99
Cheaper than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.00 per GB
Cheaper than about 93% 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 capacity128 GB (4 × 32 GB)
Performance
Rated speedDDR3 1333 (PC3 10600)
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

What bandwidth does the DDR3 1333 PC3-10600 interface provide?

The DDR3 1333 PC3-10600 standard delivers a peak data rate of 1333 MT/s per module.

What physical space is required to install these four 240-pin RDIMMs in the Mac Pro?

The Mac Pro Late 2013 cylinder has four DIMM slots; each 32 GB module occupies one slot, so all four slots must be free.

How are the modules installed and which step is often missed?

Power off, unplug, remove the outer casing, insert each 240-pin RDIMM until the ejector clips click, then reseat the casing before powering on.

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