The SanDisk 4TB Extreme Portable SSD cost a jaw-dropping $699 when it launched. You can now pick it up for a third of that original cost: $229. Amazon also offers similar deals on smaller-capacity versions for a limited time.
These external drives promise data-transfer speeds up to 1,050 MBps over a USB-C connection, and work with Mac and iPad.
UPDATE: Published reports indicate this SSD has a high failure rate, which might explain why it’s on sale. Buyer beware.