Reddit, I opened up my Acer Aspire One (ES1-132) recently in the hopes of upgrading the 32GB SSD. It turns out the SSD is eMMC so it is soldered to the motherboard.
Acer Aspire ES (ES1-132) - Celeron N3350 · HD Graphics 500 · 11.6”, HD (1366 x 768), TN · 32GB eMMC · 2GB DDR3 · Windows 10 Home | LaptopMedia Italia
Acer Aspire ES1-132-C9NX - Notebookcheck.it
Acer Aspire ES1-132 laptop review: Handy, cheap and high on storage - India Today