The sleek, expensive Samsung Portable SSD X5 offers the fastest single-drive external storage money can buy, but it's suited mainly to well-heeled content-creation pros using late-model Macs.

That will change in March with the arrival of the Samsung 9100 Pro series, its first consumer-ready pure PCIe Gen 5 SSD built with NVMe 2.0. At launch, it will be available in 1TB (starting at $ ...