mmm... I don't think you'll be able to use the M.2 SSD.
From what I'm finding this system uses a 1.8" mSATA SSD, similar to this one: [https://www.newegg.com/Product/Product.aspx?Item=N82E16820239722|Kingston SSDNow KC380 1.8" 240GB Micro-SATA 6Gb/s Internal Solid State Drive (SSD) SKC380S3/240G]. They so far don't offer anything larger than 256 GB.
Sorry I can't find how this exact system is opened but I did find this one: [https://www.youtube.com/watch?v=cGLeBKUBBzM|Acer Aspire Switch 10 Keyboard HDD Upgrade]. it might give you a clue. If you can please help us! let us know how once you figure it out. Good Luck!
mmm... I don't think you'll be able to use the M.2 SSD.
From what I'm finding this system uses a 1.8" mSATA SSD, similar to this one: [https://www.newegg.com/Product/Product.aspx?Item=N82E16820239722|Kingston SSDNow KC380 1.8" 240GB Micro-SATA 6Gb/s Internal Solid State Drive (SSD) SKC380S3/240G]. They so far don't offer anything larger than 256 GB.
Sorry I can't find how this exact system is opened but I did find this one: [https://www.youtube.com/watch?v=cGLeBKUBBzM|Acer Aspire Switch 10 Keyboard HDD Upgrade]. it might give you a clue. If you can please help us! let us know how once you figure it out. Good Luck!
Reference: [http://www.notebookcheck.net/Acer-Aspire-Switch-12-Alpha-SA5-271-56HM-Convertible-Review.167947.0.html|Acer Aspire Switch 12 Alpha SA5-271-56HM Convertible Review] "StorageKingston RBU-SNS8152S3256GG2, 256 GB or, 128 GB SATA 3"