求翻译：The USB ports seem mostly standard also (yeh, how refreshing). However, using a regular usb panel connector may not work. The shield ground pin (the one next to the missing one) needs to be connected to ground somewhere off the board. For my 220 board, this only needed to happen to USB1 and USB2, you can use USB3 however you want. So I just slapped a jumper grounding the shield pin on each to the adjacent USB ground pin as I'm not using them. If you need that many ports, you'll have to wrap a wire around the pins or something so you can still use them.是什么意思？

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