SSD upgrade to larger

"Well I've got good news and bad news for you ...

The good > Your SSD is removable (a variation of a M.2 PCIe)

The bad > Apple uses proprietary firmware on their SSD's. Presently they are the only source.

Here's the future > 3rd party's will at some point offer replacement units but thats at least a year or more away,

Sorry ;-{

Update (03/10/2016)

Here's the Latest!

OWC has just made available replacement SSD's for your system! Heres a link to the part: MacBook Pro with Retina 13"" & 15"" Late 2013 - Current"

"I believe it's a proprietary CONNECTOR, all firmware is ""proprietary"" (and that doesn't matter).

I want to upgrade mine too, the 512Gb models (and up) have a significant speed advantage over smaller models (dual channel) ."

"I'm looking to upgrade my Early 2015 MBP Retina to a 256GB or 512GB also.

I see some original Apple/Samsung SSDs for sale on eBay but they advertise them as compatible with 2013 - 2015 models.

I've read that the Late 2013 and Early 2014 models came with PCIe 2.0 x2 5.0 GT/s (8 Gbit/s) and the Early 2015 model came with PCIe 3.0 x4 8.0 GT/s (25.6 Gbit/s).

I would not think that they will be compatible with each other. I would like to find one that will run the fastest with PCIe 3.0 x4 8.0 GT/s (25.6 Gbit/s) my system supports.

Does anyone know the model number of the OEM 256GB or 512GB that would have originally came from Apple so I can look for it?"

"Hi!

We are in 2018! and i wonder if i can use a NVMe SSD 960 PRO by Samsung in the early 2015 MBP 13''

Thanks!"