We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR3 ECC registered DIMMs in anti-static tray

OWC

OWC 64GB (2x 32GB) DDR3 1333MHz ECC Registered Memory Upgrade OWC1333D3Z3M064

SKU CH-MTCW-P70GQ MPN OWC1333D3Z3M064

64 GB DDR3 ECC registered 1333 MHz kit (2 × 32 GB) for Mac Pro Late 2013 systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Buffer typeRegistered

Capacity 64GB (2 x 32GB)

  • 64GB total capacity for demanding Mac Pro workloads
  • Matched pair of 32GB modules ensures dual-channel performance
  • ECC registered design protects data integrity in critical tasks
  • DDR3 1333MHz CL9 speed rated for Mac Pro Late 2013
  • 240-pin 1.5V DIMMs install directly in supported Mac Pro models

Mac Pro Late 2013 64GB ECC Registered Kit

This matched kit supplies 64GB of DDR3 1333MHz ECC registered memory in two 32GB modules built for the Mac Pro Late 2013 series. It targets professionals who need maximum capacity for virtualisation, large media projects or scientific workloads on that specific platform.

Capacity headroom for Mac Pro Late 2013

The 64GB total fills all four slots with 32GB DIMMs, giving the highest density the 2013 architecture can address. Workloads that exceed this ceiling — such as massive in-memory databases or multi-VM clusters — will require a newer workstation platform.

Matched pair eliminates mixing risk

The two modules are factory-matched so they share identical timing and registration characteristics, preventing the boot failures that occur when registered and unbuffered ECC DIMMs are combined. No software or accessories are included beyond the memory itself.

How it compares

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

Price $111.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $1.75 per GB
Cheaper than about 94% 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
Total capacity64 GB (2 × 32 GB)
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportYes
Buffer typeRegistered
Size & build
Shipping weight0.07 kg
Package size171 × 121 × 37 mm

Other versions of this model

2 more in the same range

Questions about this item

Will the 1333MHz DDR3 ECC registered DIMMs work alongside any unbuffered modules I keep in my Mac Pro Late 2013?

The Mac Pro Late 2013 accepts either ECC registered or ECC unbuffered memory, but the two types cannot be mixed; you must remove all unbuffered DIMMs before installing this 64GB kit.

How can I confirm the 2x 32GB kit is running at the correct 1333MHz speed and CL9 latency after installation?

Open System Report on macOS and check the Memory section; each slot should show 32GB, DDR3, 1333MHz, and the part number OWC1333D3Z3M064.

Does the package contain only the two 240-pin DIMMs or are any tools or adapters included?

The box contains the matched pair of 32GB DDR3 1333MHz ECC registered 240-pin DIMMs; no installation tools or extra adapters are supplied.

More in Model-Specific Memory Upgrades

Similar items