Which is faster? SD-card class 10 or USB3 hosted SSD?

rcciren

New member
I have an HP Envy Pro All-in-One (core i7-6700 etc) that has a 256G SSD. It's a royal P.I.T.A. to get access to the disc to upgrade it. So I'm pretty much limited to external storage to expand capacity. The unit has a built in SD-card reader and USB3. Which would be faster for app/data loading - a UHS-II class SD-card (assuming the Realtek card reader/driver can support that standard) or an external USB-3/SATA-III SSD? Any guidance gratefully received.
 
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