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OWC Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models
OWC

Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models

By SpecPicks Editorial · Verified 2026-08-21

$228.67
Buy on Amazon — $228.67 Compare to similar memory & ram

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models is a niche pick — read recent reviews before buying in the memory & ram category, priced around $228.67. Read recent reviews carefully before committing.

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SpecPicks Verdict

SpecPicks classifies OWC Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz… as a niche pick — read recent reviews before buying in the memory & ram category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. OWC's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ COMPATIBLE WITH: Mac Pro MacPro 6,1 2.7GHz 3.0GHz, 3.5GHz, 3.7GHz ME253LL/A - A1481 - 2630
  • ✓ Backed by OWC's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • OWC 64.0GB UPGRADE: Consists of a Two 32GB DDR3 1333MHz PC3-10600 CL9 ECC Registered DIMMs 1.5V 240-pin Memory Module with Mac qualified Thermal Sensor EEPROM
  • 100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed All MAC Specifications for Mac Pro 2013
  • COMPATIBLE PART NUMBERS: MT72KSZS4G72PZ‐1G1, HMT84GR7BMR4A‐H9, M393B4G70BM0‐YH9, MT72KSZS4G72PZ‐1G4, HMT84GR7MMR4A‐H9, HMT84GR7AMR4A‐H9, M393B4G70DM0‐YH9
  • COMPATIBLE WITH: Mac Pro MacPro 6,1 2.7GHz 3.0GHz, 3.5GHz, 3.7GHz ME253LL/A - A1481 - 2630
  • INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance in Your Mac Pro
  • INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

Full Specifications

BrandOWC
Voltage1.5 volts
RAM Size64 GB
Model NameOWC1333D3Z3M064 13831348
Unit Count2 Count
Form FactorDIMM
Memory Speed666 MHz
Model NumberOWC1333D3Z3M064
CompatibilityMac
Number of Pins240
COMPATIBLE WITHMac Pro MacPro 6,1 2.7GHz 3.0GHz, 3.5GHz, 3.7GHz ME253LL/A - A1481 - 2630
Mfr Part NumberOWC1333D3Z3M064
INDUSTRY LEADINGConsumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
Memory GenerationDDR3

Ready to buy?

OWC Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

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OWC Memory 64GB (2X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models
$228.67
View on Amazon →