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macrumors newbie
Original poster
Jan 3, 2017
I lucked out by buying a 256GB refurb and getting a 512GB model :)

My original plan was to swap out the SSD with a 512-1024GB Adata or Samsung SSD, however now I'm wondering if the stock SSD will be perfectly fine.

Does anyone happen to know if any of the alternatives are that much faster? I guess I'm not that motivated to swap if I'd only see a small performance bump.


macrumors 68000
Apr 21, 2007
You're also only going to get slightly better write speeds if you ever change the drive. The PCIe 3.0 x2 bus limits the transfer speeds to roughly a maximum of 1500 MB/s read/write. Don't be tempted by the advertised speeds of the Samsung or other high speed NVMe drives as they are quoting PCIe 3.0 x4 speeds, which you will never get on the 2015/1017 MacBook Airs.
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