外殼的側面已預留足夠空間，只要添購『彩虹排線』就能夠把 GPIO 延伸了，而且全銅外殼的好處就是可以屏蔽樹莓派 4 發出的干擾：
https://leadertechinc.com/blog/the-t...ow-about-them/
https://desalvoinc.com/products/soli...raspberry-pi-4Copper is the most reliable metal in EMI shielding because it is highly effective in attenuating magnetic and electrical waves.https://wickedaluminum.com/products/...at-dissipationSlot for GPIO 40 pin cable.https://shopee.tw/【莓亞科技】樹莓派GPIO-40P彩...1089.961970445This is the "Standard" version which means there is access to all the ports available, including the micro SD card and full GPIO header access.
https://www.meiyagroup.com.tw/product/樹莓派gpio-40p彩虹排線/
https://www.ruten.com.tw/item/show?21439299615797
https://www.ruten.com.tw/item/show?22101621885411
https://www.taiwan-raspberrypi.com/store/彩虹排線/
基本上就是醬子的：
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