Roger on that - they were merely cosmetic for me.
I forgot - I'm happy to report that you can also BOOT from mmc / SD-Card devices too. I haven't tried blowing out my onboard eMMC's, but sd-card boot works just fine for those devices that don't lock out that ability. Made my early win 8.1 computesticks, and the little hockey-puck sized mini pc very happy. All running / set for uefi-only btw. The way I use TC that is not a problem using sd-card for operations. So again, thanks as that opens up usb ports for other things.