Actual product may differ slightly in appearance.
Memory trade-in rebate
Send us your old memory when you upgrade and we’ll give you a rebate!
OWC Memory
- This Mac has four available memory slots.
- Install in pairs for best performance.
- Backed by an OWC Limited Lifetime Warranty.
Buying Options2400MHz DDR4 PC4-19200 — Maximum 64GB supported
4GB (4GB x 1) | 2,990 | Buy Now | |
8GB (4GB x 2) | 4990 | Buy Now | |
8GB (8GB x 1) | 3,990 | Buy Now | |
16GB (8GB x 2) | 7,990 | Buy Now | |
16GB (16GB x 1) | 6,990 | Buy Now | |
32GB (8GB x 4) | 14,990 | Buy Now | |
32GB (16GB x 2) | 12,990 | Buy Now | |
64GB (16GB x 4) | 25,990 | Buy Now |
OWC Memory Upgrades For 27″ iMac with Retina 5K Display (2017)
64GB
Up to 64GB memory
2x
Up to 2x more memory vs. factory options
Works with the following Model IDs
- iMac18,3
Rigorously in-house lab tested
Easy DIY install videos
OWC MaxRAM Certification
Lifetime advanced replacement warranty
