ArchQ 數位訊源入門 -> 究極

[seeteeyou]

這就是Seeteeyou 兄最近一直提到Delock USB4.0的原因了。而小弟也正猜想，用得上的地方都應改採用這條USB4，其一就是網路線。
近日小弟也正在預備kernel 6.1，自然的會把USB4的網路功能加上，或許雙機之間用上這條USB4也能大幅提升音質。

實在是十分可惜的說：

https://www.breakinglatest.news/tech...i-motherboard/

It is important to note that the design of the MS-4489 USB4 expansion card may not be universal, as it features a set of signal pins labeled JU4_1 on the circuit board, which need to be connected to the corresponding supported motherboard. The socket on the motherboard side is seemingly named JTBT_U4_1. Based on the pin design, MSI seems to have utilized the older Thunderbolt control signal pin definition, distinguishing and segregating Thunderbolt (TB) and USB4 expansion cards at the UEFI BIOS layer.

https://benchlife.info/ditching-thun...i-motherboard/

MS-4489 的設計可能並非萬用，因為電路板上有組編號 JU4_1 訊號腳位，得連接到自家相對應支援的主機板上，主機板端插座的命名似乎為 JTBT_U4_1。從腳位設計來看，MSI 應該是沿用舊有的 Thunderbolt 控制訊號腳位定義，然後在 UEFI BIOS 層進行 TB、USB4 擴充卡辨識與區隔。

暫時微星只有相當少主機板具備那個 JTBT_U4_1 插座：

MAG B760M MORTAR II
https://www.msi.com/Motherboard/MAG-.../Specification

MAG B760M MORTAR WIFI II
https://www.msi.com/Motherboard/MAG-.../Specification

MPG B760M EDGE TI WIFI
https://www.msi.com/Motherboard/MPG-.../Specification

MPG Z790 CARBON MAX WIFI
https://www.msi.com/Motherboard/MPG-.../Specification

MPG Z790 EDGE TI MAX WIFI
https://www.msi.com/Motherboard/MPG-.../Specification

PRO Z790-A MAX WIFI
https://www.msi.com/Motherboard/PRO-.../Specification

Z790 GAMING PLUS WIFI
https://www.msi.com/Motherboard/Z790.../Specification

1x USB4 card connector (JTBT_U4_1, supports RTD3)

理論上是不會為了 USB4 而更換主機板，因此沒有原生 Thunderbolt 4 的主機板就緣慳一面了。

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華碩 ROG MAXIMUS XIII APEX 該是便宜又大碗的主機板，然而它的 USB 3.2 Gen 2x2 無法支援 USB4NET：

https://rog.asus.com/motherboards/ro...ex-model/spec/