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Four green DDR3 memory modules with gold contacts in silver heat spreaders

Simmtec, Inc

Simmtec, Inc 64GB Kit 4x16GB DDR3-1866 PC3-14900 Mac Pro Late 2013

SKU CH-A6TW-N6833

Four 16 GB DDR3-1866 modules totalling 64 GB for the Mac Pro Late 2013

  • 64 GB total capacity from four 16 GB modules
  • DDR3-1866 speed rated at PC3-14900 for Mac Pro Late 2013
  • Designed specifically for Mac Pro A1481 (MacPro6,1) systems
  • 240-pin DIMM form factor fits the Mac Pro memory slots
  • Operates at standard 1.5 V DDR3 voltage

64 GB DDR3-1866 Kit for Mac Pro 2013

This 64 GB kit contains four 16 GB modules built for the Mac Pro Late 2013 (MacPro6,1). It matches the original Apple part numbers ME253LL/A and MD878LL/A and installs in the system's 240-pin slots. The memory runs at DDR3-1866 (PC3-14900) with a standard 1.5 V operating voltage.

Suits owners of a Mac Pro Late 2013 needing

The kit fills all four slots for a total of 64 GB. It is not for users of any other Mac model, any PC workstation, or any system that requires a different pin count, voltage, or DDR generation. Buyers needing ECC registration or a different speed grade should look elsewhere.

240-pin DDR3-1866 at 1.5 V

The modules use a 240-pin interface and operate at the DDR3-1866 data rate with 1.5 V. This combination of pin layout, speed, and voltage determines whether the kit will work in the target Mac Pro. Verify that your system accepts unbuffered non-ECC DDR3 at this exact specification before purchasing.

Highlights

  • 64 GB total capacity from four 16 GB modules
  • DDR3-1866 speed rated at PC3-14900 for Mac Pro Late 2013
  • Designed specifically for Mac Pro A1481 (MacPro6,1) systems
  • 240-pin DIMM form factor fits the Mac Pro memory slots
  • Operates at standard 1.5 V DDR3 voltage

Specifications

No published specifications for this item yet.

Questions about this item

How much power does each 16 GB DDR3-1866 module draw at its rated 1.5 V?

Each module operates at 1.5 V, the standard voltage for DDR3-1866, so power draw stays within the normal range for this speed grade.

Does the Mac Pro Late 2013 require any specific firmware or macOS version to recognise all 64 GB?

The Mac Pro Late 2013 (MacPro6,1) supports up to 64 GB across its four slots, so this 4 × 16 GB kit will be recognised on a supported macOS release.

Can I mix these 1866 MHz sticks with the original memory that came in my Mac Pro Late 2013?

The system runs all installed memory at the lowest common speed, so adding these modules alongside slower sticks will down-clock the kit to match.

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