Thunderbolt costs more but we'll have to wait and see how companies implement Thunderbolt within USB4.
(Yes the upgrade from SATA to NVMe reason for speed upgrade is correct, but the USB bus is now the limiting factor.)Įven when USB4 is released it still will be slower than Thunderbolt unless they include TB in their hardware interface. Yes this is super-confusing, and adds to the need for journalists to explain more to readers (and complain about stupid naming). (Thanks USB IF!) Speed is determined by the Gen 1 (5Gbps), Gen 2 (10 Gbps) or Gen 2 2x2 (20 Gbps). As far as I know no Macs support 20 Gbps USB 3.x 2x2, so the Pro model will be limited to about the same 1000 MBps as the non-pro.Īlso the article states that the non-pro version is faster because of the upgrade “from USB 3.1 Gen 2 to USB 3.2 Gen 2”.
