USB 4 laptops
USB4
— USB4 is high-speed revision of the USB interface introduced in 2019. It uses only symmetrical USB-C connectors and does not have its own data format — instead, such connection is used to transfer information according to several standards at once: USB 3.2 and DisplayPort as mandatory, as well as PCI-E as an option. Another feature is that USB4 is based on Thunderbolt v3 and uses the same USB-C connector, which often makes USB4 devices and connectors compatible with Thunderbolt v3 (although this is not strictly required), and Thunderbolt v4 support for this interface is built-in . It is also worth noting that this USB revision allows connecting devices in daisy chain and by default supports Power Delivery technology, which allows you to optimize the process of charging external gadgets (provided that they also implement this technology).The maximum data transfer rate for such connector should be at least 10 Gbps, in fact, options for 20 Gbps and even 40 Gbps are often found (depending on the technologies and standards supported by particular port). At the same time, USB4 inputs are quite compatible with peripherals for earlier versions of USB — except that devices with full-size USB A plug require an adapter.
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