The USB Promoter Group introduced USB4 2.0 on Thursday, a comparatively minor however significant change to the prevailing USB4 spec. Merely put, it doubles the utmost bandwidth to 80 gigabits per second, permitting for higher-bandwidth show tunneling and aligning with newer DisplayPort and PCIe specs.
USB4 2.0 units will nonetheless use the USB-C connector, and can stay backward suitable with USB4 Model 1.0, USB 3.2, USB 2.0, and Thunderbolt 3.
The place USB4 was restricted to 40 Gbps, the brand new 2.0 model of the spec doubles that to 80 Gbps, utilizing present 40 Gbps USB Kind-C passive cables and newly-defined 80 Gbps USB Kind-C lively cables. The preliminary USB4 spec required DisplayPort passthrough of 10 Gbps and offered for non-compulsory passthrough of 20 Gbps, however the USB4 2.0 spec permits for larger speeds wanted by at the moment’s greatest high-performance shows.
When will we see USB4 2.0 ports on Macs? Apple is often fairly fast to help these new requirements–the USB-C ports on at the moment’s MacBook Professional, MacBook Air, and Mac Studio help USB4 together with both Thunderbolt 3 or 4. Given the timing of this announcement and the comparatively easy change concerned, it’s affordable to anticipate USB 4 2.0 help on Macs that get substantial processor updates in 2023, doubtless beginning within the second half.