虽然雷电5和usb4 v2的双向传输带宽均为80gbps，但雷电5在此基础上还强制性搭载了 bandwidth boost 动态带宽加速功能，它能够实时监测数据传输的类型与需求，当用户外接多个. Adopters may only use this usb specification to implement usb or third party functionality as expressly described in this. 了解 usb4 認證流程和 usb4 v2 的最新更新，為內容創作者和行動工作環境提供更快的資料傳輸速度和更強的功能。
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Usb4 also added support for usb3 tunnels and use of the usb2 wires for improved backwards compatibility with previous usb standards and to allow for simpler usb4 devices without. Usb4® specification v2.0 12/11/2024 note:
