TechPowerUp checked out the ADATA SE800 Portable SSD 1 TB
A quote from the article:
The ADATA SE800 is an NVMe based external SSD, which means it offers much better performance than earlier external storage. In our testing we saw speeds up to 1 GB/s, that, paired with 1 TB capacity on the SE800 make it an excellent choice if you want to move a lot of data around.ADATA SE800 Portable SSD 1 TB Review