M.2 interface
To test the speeds of the 256GB SATA M.2 SSD that ships with the ZenBook, we ran CrystalDiskMark 5.2.1.
The UX430UA's SSD delivers decent speeds for a SATA SSD, but really we would have liked to see a NVMe SSD as these are not hideously expensive anymore and considerably quicker. The 256GB capacity is adequate, but 512GB is a more comfortable choice these days.
USB 3.0
The UX430UA has a single USB 3.0 port, into which we plugged a 32GB SanDisk Ultra USB 3.0 thumb drive.
These results are reasonable for this thumb drive.
It says USB 3.1, but the review doesn’t mention if it has thunderbolt 3? The Dell XPS it compares to does have Thunderbolt 3
Nope, no Thunderbolt 3. It would have been in the specs if there was. But you do have a Micro HDMI, USB 3.1 Type C and adapter for full-sized HDMI.