The SD card slot is a weird duck. There's a single use case for which can't easily be replaced by a USB-C dongle: using it as makeshift additional "internal" s

The SD card slot is a weird duck. There's a single use case for which can't easily be replaced by a USB-C dongle: using it as makeshift additional "internal" storage. SD cards work pretty well for that, for most read-heavy use cases. On older Macbooks, with undersized internal storage, I'd keep an SD card in the slot. I'd keep downloaded media there, installers, even infrequently used applications. Assuming one's using a high quality SD card, performance was "plenty good enough." I wouldn't keep anything crucial on an SD card, but everything on my local storage is backed up to the cloud anyway, so not really an issue.