I prefer CF cards because there's no signal conversion needed while SD card adapters needs conversion electronics. I'm not sure if the SD card adapters are any

I prefer CF cards because there's no signal conversion needed while SD card adapters needs conversion electronics. I'm not sure if the SD card adapters are any less reliable, but I've stuck to buying Startech CF adapters and have not had any issues yet. Plus, I have about 30 CF cards on hand so it's nice to still have a use for them.