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you can replace it with like for like from Apple with an apple part (same config) or you can buy one from OWC, however I have seen those drives cause issues on other machines.
 
you can replace it with like for like from Apple with an apple part (same config) or you can buy one from OWC, however I have seen those drives cause issues on other machines.
Thanks. I would only use a used OEM drive. I too have heard plenty of issues with the OWC.
 
that will work if its the same type of PCIe card, the only thing is it will void warranty with Apple. If you are okay with that, then do that!
 
When looking for oem drives, look for the Samsung. My 256 GB Samsung is so much faster than my 128 GB Sandisk. I know that a 256 will outperform a 128 GB in different benchmarks but my Samsung is 2.5 to 3 times faster than my 128 GB is read/write speeds.
 
When looking for oem drives, look for the Samsung. My 256 GB Samsung is so much faster than my 128 GB Sandisk. I know that a 256 will outperform a 128 GB in different benchmarks but my Samsung is 2.5 to 3 times faster than my 128 GB is read/write speeds.
Thanks. I didn't know there were different brands of OEM Apple used on the later Airs.
 
It's possible that the 2017 Air only use Samsung drives.

If you are buying a 256 GB separately, defintely look for Samsung.

The mid-2013 to early 2015 use the same ssd interface.
 
Don’t forget about the Transcend JetDrive SSD replacement. Have the 480GB in my 2012 MBA that I just finished updating to High Sierra. Have had this replacement SSD for a couple of years now with no issues. Came with an external USB-3 case for my original SSD which I now use as a beta OS drive.
 
Don’t forget about the Transcend JetDrive SSD replacement. Have the 480GB in my 2012 MBA that I just finished updating to High Sierra. Have had this replacement SSD for a couple of years now with no issues. Came with an external USB-3 case for my original SSD which I now use as a beta OS drive.

Does it run just as fast as the OEM?
 
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The drives that the MBA 2017 uses are only manufactured by Samsung, so no worries about other manufacturers with slower drives like with earlier OEM SSDs.

OWC is the only third party manufacturer to make a natively compatible (no adapter needed) SSD, but their SSDs are significantly slower than the drives the OEM drives that shipped in the 2017 MBA. Roughly half the read/write speeds.

The OEM drive is PCIe 3.0 x4 btw. They're distinguished by "SSUBX" on the label. If you have a particular size drive you're looking for, I can give part numbers for the drive.
 
I purchased from iFixit (2013-2015 model).

The sweet-spot, price-wise, was the 256GB used, which was unfortunately not in stock when I ordered.

I ended up with the 512GB (used), for $550 plus tax. They supposedly have a life-time warranty, although I didn't see the t&c on that. BTW, Apple would have charged me $500+ for a replacement 128GB only, with a 90-day warranty.

Now safely and successfully installed on my 2014 MBA, whose original 128GB failed around the year mark.
 
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The drives that the MBA 2017 uses are only manufactured by Samsung, so no worries about other manufacturers with slower drives like with earlier OEM SSDs.

OWC is the only third party manufacturer to make a natively compatible (no adapter needed) SSD, but their SSDs are significantly slower than the drives the OEM drives that shipped in the 2017 MBA. Roughly half the read/write speeds.

The OEM drive is PCIe 3.0 x4 btw. They're distinguished by "SSUBX" on the label. If you have a particular size drive you're looking for, I can give part numbers for the drive.
Could you get me the 256gb part number? Thanks!
 

Ifixit is conflating part numbers from the M2013-M2014 SSUAX drives with the 2015 SSUBX drives. For the 256GB SSD, the only 2015 PN in the bunch is 655-1858 and the rest of the part numbers are all specific to the earlier generation of drives. It's a bad sign, and usually means they're going to send the slower SSUAX drives.

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Could you get me the 256gb part number? Thanks!
Part numbers for the 256GB drive are 655-1858, 655-1959, MZ-JPV2560, MZ-JPV256R, MZ-JPV256S. There are different endings affixed to the end of those part numbers, like 655-1858A or MZ-JPV2560/0A4, but they're unimportant.
 
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