128GB mSATA SSD ADATA XM11 For Asus ZenBook UX21A UX21E UX31A UX31E. 128GB mSATA SSD SanDisk SDSA5JK-128G-Q For Asus UX21 UX31 Series. SanDisk 16GB mSATA SSD Drive SDSA5DK-016G-1004, Used, Tested. SanDisk X100 SD5SF2-032G-1010E mSATA 32 GB SSD Solid State Drive.
eBay