There's an unofficial mini SNES that plays cartridges too

Plenty of people have been enjoying their SNES Minis over the past couple of weeks, but the one thing most are lamenting is the fact they can’t actually shove their old cartridges in and play away.
In steps Analogue, Inc. to provide the premium retro console production specs they’ve wheeled out before for the Neo Geo and NES.

The Super Nt is an enclosure that runs SNES cartridges and outputs via HDMI with extremely low latency.

It’s available for pre-order now but won’t begin shipping until February 2018, but if you’ve got a huge library of carts that need something small to go in then this is the solution you’ve been waiting for – even if Nintendo aren’t the ones to offer it.