The 1TB WD SanDisk Extreme Portable SSD recorded on Amazon priced at $199.99 & FREE shipping in the US. Lowest ever!
The SSD is nestled in an IP55-rated rugged shell, offering speeds up to 550MB/s reads with the USB Type-C port (USB3.1 gen2 10Gbps).
There's a review up on Imaging Resource.
* ✈ International shipping available.