请问如何才能知道一张主板拥有Key E接口? 像视频里的ROG Strix B550-F 我上网找了下,他出现2种,一种有wifi 一种没wifi,有wifi的显示自带AX200 (跟视频里的一样,不知道是自带还是需要自己另外买过来组装?),但是我看简介两者都没有提示Key E的插槽存在,找了下其他的也大都没显示关于Key E的资讯,大部分都只显示像以下这种: 1 x M.2_2 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) Total supports 2 x M.2 slot(s) and 6 x SATA 6Gb/s ports 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode) AMD B550 Chipset : 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) 6 x SATA 6Gb/s port(s)