Thunderbolt 5 is a much bigger performance shift than Thunderbolt 4 was over Thunderbolt 3, which was just some Windows certification changes plus a few actual spec updates.
The latest Thunderbolt 5 (TB5) connection standard doubles the bandwidth from 40Gbps to bi-directional 80Gbps, with 120Gbps possible as enhanced Bandwith Boost for video. PCIe throughput increases from 32Gbps to 64Gbps, which is particularly beneficial for storage such as high-performance SSDs or RAID devices. Power delivery potential over Thunderbolt 5 goes up from 100W to 240W.
OWC is one of the major makers of docking stations, so we have been looking forward to testing its first Thunderbolt 5 dock. OWC also has a cut-down Thunderbolt 5 Hub, which we will be testing soon.