Samsung Portable SSD T3 1TB External Solid State Drive. This compact and featherlight external SSD delivers big storage and blazing-fast speeds in a supremely portable design. It's about the size of a business card, weighs approx 51gm, and offers data transfer speed of up to 450MB/s. It also features a shock-resistant metal exterior, internal support frame and 256-bit hardware encryption.
USB Type C interface with 3 years worth of warranty by Samsung.
Cheapest on Staticice.com.au is $568.
the cost vs the time you wait for a normal 2.5" HHD to copy files over isnt worth it.
sustained write speeds have never been too much of an issue for hard drives :).. my top of the range SSD is only 2 times as fast when moving a single 1GB files :)
most of the time the PC is the limiting factor .. not all PC's can move files at 500MB's a second even if usb 3.1 c can