iMac 2020
iMac Retina 5K 27”
iMac Retina 4K 21.5” 2020
Professional Installation Highly Recommended
While this upgrade kit itself should not void your warranty,
the installation process is very complex and thus it is recommended to be performed by a trained professional.
2666MHz DDR4 PC4-21300 32GB
2666MHz DDR4 PC4-21300 64GB
Memory Upgrades
For 27" iMac with Retina 5K Display (2020)
2666MHz DDR4 PC4-21300 96GB
2666MHz DDR4 PC4-21300 128GB
2019 21.5” 4K iMac x2 8GB 2400MHz DDR4
2019 21.5” 4K iMac x2 16GB 2400MHz DDR4
Please note: This memory is for Apple iMac 4K 2019/20 (21.5") Models only.
Memory provided is special config for 21.5" ONLY and is NOT compatible with Apple iMac 27" Models. Included memory also compatible with PC Laptops which use DDR4 2133 or 2400 modules.
This Memory is compatible with...
iMac w/Retina 4K display
(21.5-inch 2019)
3.6GHz Quad-core
2666MHz DDR4 PC4-21300
2666MHz DDR4 PC4-21300
2666MHz DDR4 PC4-21300
2019/20 21.5” 4K iMac 16GB
2019/20 21.5” 4K iMac 32GB
2019/20 21.5” 4K iMac 64GB
This Memory is compatible with...
iMac w/Retina 4K display
(21.5-inch 2019/20)
3.0GHz Quad-core
3.2GHz Quad-core
Your own private security detail. The Apple T2 Security Chip comes to the 27‑inch iMac, with a Secure Enclave coprocessor that provides the foundation for secure boot and encrypted storage capabilities. The T2 chip also enables powerful features like the 1080p FaceTime HD camera, face detection, enhanced speaker bass response and “Hey Siri” — and makes transcoding HEVC video up to twice as fast as the previous generation.15
Storage
This 27" iMac comes as standard with 512GB of ultra-fast SSD storage for incredible performance. SSD storage delivers significantly improved performance compared to a traditional hard drive — speed you’ll notice when you start up your iMac, launch an app or browse your photo library. SSD storage uses no moving parts, so it operates silently.
For maximum capacity, you can configure this iMac with up to 8TB of storage, giving you abundant space for your documents, photos, music, videos and apps.
Keep in mind that iMac storage is not user accessible.
If you think you may need more storage capacity in the future,
consider upgrading at the time of purchase
Apple says that the flash storage is indeed affixed to the logic board and cannot be removed.
However, for the 4TB & 8TB configurations Apple says that the flash storage expansion board is attached to a connector on the logic board.
In the 256GB, 512GB, 1TB, 2TB configurations
the expansion board & connector are not present
Apple adds that the flash storage and logic board are paired together for hardware encryption so data will be lost if the logic board is replaced,
For this reason it is recommended that customers back up their files on a regular basis.
NO SSD/Flash storage upgrades
After purchase
For 27" iMac with Retina 5K Display (2020)
SSD/Flash storage upgrades
are available after purchase
For 21.5" iMac with Retina 4K Display (2020)
500GB
1TB
2TB
4TB
or
External storage options via Thunderbolt 3
1TB to 128TB
External storage options are available
via Thunderbolt 3
1TB to 128TB
the 256 GB configurations :
there are 2 flash nand soldered, 1 on the back side of the logic board, 1 on the front side
the 512GB to 2 TB :
there are 4 flash nand soldered, 2 on the back side of the logic board, 2 on the front side
the 4TB and 8 TB configurations :
yes there is a flash expansion module, but it contains only HALF of the flash storage
the other half of storage is still soldered to the logic board.
So for this iMac 27” 5K 2020 :
all configs from 256GB to 2TB of storage have 100% of their storage soldered
the 4 TB configuration has 2TB soldered and 2 TB on a separate module
similar to the iMac Pro and Mac Pro
the 8 TB configuraiton has 4TB soldered and 4 TB on a separate module
This iMac has been conceived with limited engineering efforts,
so even if there is plenty of space, Apple choose to not offer upgradability
