想说来比较ASUS X570-F跟X570-E有哪些差异
拉到产品规格-后面版输出端子这栏：
出现USB 2.0、3.1 Gen1、3.2 Gen 1、3.2 Gen 2
还分TYPE-A跟TYPE-C，看到眼花撩乱有够夸张
而且3.1 Gen1跟3.2 Gen1根本相同的东西，重复就算了数量居然不同!?
另外跟图片对照后怎么看都觉得标示数量怪怪
X570-F 后面板 https://imgur.com/7uRbBKW
官网规格
5 x USB 3.1 Gen 1 Type-A 蓝色4个，加上3.2 Gen2向下相容也该是7个
8 x USB 2.0 总共8个洞，一般会用type-c接2.0装置?
4 x USB 3.2 Gen 1 (up to 5Gbps) ports
3 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-A)
1 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-C)
X570-E 后面板 https://imgur.com/PhfBXSj
官网规格
5 x USB 3.1 Gen 1 Type-A 算3.2 Gen2向下相容7个
8 x USB 2.0 同X570-F
7 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-A)
1 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-C)
结论：
USB-IF真是害人不浅