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64.0GB OWC Memory Upgrade Kit

2 x 32GB 2666MHZ DDR4 SO-DIMM PC4-21300

Used| OWC Tested

Memory Image
Product Specs:
  • Technology: DDR4 SO-DIMM 260 Pin
  • Density: 2 x 32GB (32768MB)
  • RoHS: Yes
  • Pin Count: 260-pin
  • Op. Temp.: 0C to +85C
  • Data Rate: DDR4-2666
  • Speed: PC4-21300
  • Voltage: 1.2V
  • Low Noise 8-Layer PCB
  • Meets and/or Exceeds Apple/Intel Specifications
  • RoHS Certified
  • Free Installation Videos & Manuals
  • This pre-owned OWC memory has been tested to deliver maximum performance by OWC and guaranteed to work for all machines listed as compatible.
  • Why do I need more RAM?
Memory Trade in
Save money by trading in your original chips! View available memory rebates.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.

Note: For 27-inch iMac (2020) models — iMac20,1 and iMac 20,2 — OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.

Note: Tools are required to install memory in Mac mini (Late 2018). OWC recommends the OWC Memory Installation Toolkit for this install.

This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2020)
(August 2020)
Model ID: iMac20,1; iMac20,2
3.1GHz i5, 3.3GHz i5, 3.8GHz i7, 3.6GHz i9
Detailed specs coming soon
iMac Intel
iMac w/Retina 5K display
(27-inch Early 2019)
(March 2019)
Model ID: iMac19,1
3.0GHz i5, 3.1GHz i5, 3.7GHz i5, 3.6GHz i9
Mac mini 2018
Mac mini (Late 2018)
(November, 2018)
Model ID: Macmini8,1
3.6GHz i3, 3.0GHz i5, 3.2GHz i7
PC Laptop
PC Laptops
Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.
OWC Memory 32.0GB 2 x 16GB PC4-21300 DDR4 Kit Mfr P/N: WU2666DDR4S64U OWC SKU: OWU2666DDR4S64U 64GB (32GB x 2) Memory Upgrade Kit *Used | OWC Tested* 2 Year OWC Limited Warranty
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