This guide covers everything you need to know about upgrading the RAM and storage on the Apple iMac 27-inch (2019) (2019). Whether you want faster performance, more memory, or additional storage space, we have the compatibility details and recommended upgrades below.
Apple iMac 27-inch (2019) — Quick Specs

| Specification | Details |
|---|---|
| Model | Apple iMac 27-inch (2019) |
| Year | 2019 |
| Type | Desktop |
| Processor | Intel Core i5-9600K / i9-9900K |
| RAM Type | DDR4 |
| RAM Form Factor | DIMM |
| Max RAM | 128GB |
| RAM Slots | 4 slots (user-accessible) |
| Storage Type | M.2 NVMe |
| Storage Slots | 1x M.2 NVMe (soldered on base models) |
Apple iMac 27-inch (2019) Memory (RAM) Upgrade
The Apple iMac 27-inch (2019) supports DDR4 DIMM memory modules with a maximum capacity of 128GB. It has 4 slots (user-accessible).
Recommended RAM Upgrades
| Recommended RAM | Buy |
|---|---|
| Corsair Vengeance DDR4 SODIMM 32GB (2x16GB) 3200MHz | Check Price |
| Kingston Fury Impact DDR4 16GB (2x8GB) 3200MHz SODIMM | Check Price |
| Crucial DDR4 8GB 3200MHz SODIMM | Check Price |
| Samsung DDR4 16GB 3200MHz SODIMM | Check Price |
Apple iMac 27-inch (2019) Storage (SSD/HDD) Upgrade
The Apple iMac 27-inch (2019) supports M.2 NVMe storage with 1x M.2 NVMe (soldered on base models).
Recommended SSD Upgrades
| Recommended SSD | Buy |
|---|---|
| Samsung 970 EVO Plus 1TB NVMe M.2 | Check Price |
| WD Black SN770 1TB NVMe M.2 | Check Price |
| Crucial P3 Plus 500GB NVMe M.2 | Check Price |
Upgrade Difficulty
The Apple iMac 27-inch (2019) has an upgrade difficulty rating of Moderate. Most users can upgrade the RAM and SSD with basic tools (Phillips screwdriver). Always disconnect the battery before performing any internal upgrades.
Upgrade Tips for the Apple iMac 27-inch (2019)
- Back up all data before replacing or adding storage drives.
- Use an anti-static wrist strap to prevent damage to components.
- Match RAM speed and type (DDR4 DIMM) for best compatibility.
- Check your current configuration in the BIOS before ordering parts.
- Consider cloning your existing drive to a new SSD for a seamless transition.
Related Guides
Frequently Asked Questions
What is the maximum RAM for the Apple iMac 27-inch (2019)?
The Apple iMac 27-inch (2019) supports a maximum of 128GB of DDR4 DIMM memory across 4 slots (user-accessible).
What type of SSD does the Apple iMac 27-inch (2019) use?
The Apple iMac 27-inch (2019) uses M.2 NVMe storage with 1x M.2 NVMe (soldered on base models).
Can I upgrade the RAM in the Apple iMac 27-inch (2019)?
Yes, the Apple iMac 27-inch (2019) has 4 slots (user-accessible) supporting DDR4 DIMM modules up to 128GB total.
Is the Apple iMac 27-inch (2019) worth upgrading?
Upgrading the RAM and SSD in the Apple iMac 27-inch (2019) can significantly improve performance, especially if you are running out of memory or storage space.
Recommended DDR4 Laptop RAM

Kingston Technology
Kingston Technology KCP432SD8/32 memory module 32 GB 1 x 32 GB DDR4 32
£272.65
View Deal







