Does anyone know what type of SSD (SLC, MLC, TLC, QLC) is in the 2014 15" MacBook Pro?

[lkar]

If I want to replace the SSD with a higher capacity NVMe SSD I want to make sure that I buy one that is actually better than the stock one.

Here the photo of my current Apple SSD:

 

[Flav]

Years ago I bought an original Apple 1TB SSD (Samsung made). Here is the model number

MZ-KPU1T0T/0A1 Samsung 1TB MLC PCI Express 3.0 x4 M.2 2280 Internal Solid State Drive (SSD) for MacBook​

 

[greenmeanie]

I had a couple SSD's laying around and tried putting them in a macbook pro 2014 with a adapter and it wouldn't boot from them.
In the end I went back to the original SSD.
Check EBAY there are original SSD's up there for cheap prices.

 

[Amethyst1]

One of the Apple OEM SSDs (the "SSUBX") this machine uses is based on the Samsung SM951, which uses MLC.

 

[lkar]

OK, so if I assume mine is MLC, and 256 GB, if i get something like a 1 TB NVMe SSD, what would be considered an "upgrade" and not a "sidegrade"?

Or do they not make MLC SSDs anymore and I have to settle for TLC or QLC?

So my question is, if I get like a 1 TB TLC SSD (or QLC), will it be "equivalent" to my 256 GB MLC SSD?

What do you guys recommend I do then?

 

[lkar]

Here is my current SSD, anyone know for sure?

 

[Audit13]

The PCIe bus in the MacBook is going to limit the read and write speed of the SSD.

You will also need to ensure it's running at least a High Sierra bootrom before it will work with an NVMe drive.

I recommend looking at this thread: https://forums.macrumors.com/thread....2034976/page-450?post=32056473#post-32056473

 

[Amethyst1]

Here is my current SSD, anyone know for sure?

This is for sure a "SSUAX", based on the Samsung XP941, which uses MLC.

 

[lkar]

This is for sure a "SSUAX", based on the Samsung XP941, which uses MLC.

I am out of the loop when it comes to SSDs (my laptop is from 2014), back then SLC and MLC SSDs were quite common, nowadays there seems to be not that much of those anymore, and TLC and QLC are the norm now, is that a downgrade? Does that mean my MLC SSD is precious?

 

[steve123]

Apple uses a proprietary SSD module. You will need an adapter to use an NVMe SSD. The good news is Apple released firmware that supports NVMe modules.

If you are concerned about endurance, there are some TLC NVMe SSD's out there with better endurance ratings such as the Seagate Firecuda 530, Kingston Fury Renegade and others.