At 250GB and 72.7x44x12.2mm (2.8×1.7×0.4") this external SSD from ADATA is small in two ways which is a mixed blessing for mobile storage.  You may feel somewhat cramped, however the device is very portable and inexpensive.  The Type C to Type A USB 3.1 connection provided up to 427MB/s transfer speeds in The SSD Review's ATTO testing, Crystal Disk showing 341MB/s read and 376MB/s write.  While those speeds are not up to the theoretical maximum for USB 3.1 they are still impressive for an external device.  Check out the full review right here.

"The ADATA SE730 differs from many other SSDs, however, as it contains the characteristics of being waterproof, dustproof and shockproof, in addition to its small size. If you want storage that will overcome the elements, the SE730 just might be what you're looking for. In addition, this external SSD has a great price and can be found at Amazon for $120."

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