The OWC Envoy Pro SX is another in OWC's lengthy line of portable NVMe M.2 SSDs. Due to its speedy interface (support for both Thunderbolt 3 and USB4), this bus-powered mobile drive is ideal for a range of different use cases, including media storage, general backups, and on-set editing. The Envoy Pro SX also can be used as a secondary boot drive for a Mac and even as a portable Steam games library device. It comes in capacities ranging from 240GB to 2TB and features the Intel JHL6340 Thunderbolt 3 Controller, the latter which was launched back in 2016.