Can I upgrade the SSD on the Early 2015 13" Macbook Pro?
Have a look here at MCE USA.
They offer SSD Blades for MacBook Pro Late 2013 - Early 2015 from 256GB up to 1TB.
http://store.mcetech.com/mm/merchant.mvc?Store_Code=MTOS&amp;Screen=CTGY&amp;Category_Code=PCIEFLASH

OWC/MacSales doesn't have any yet.