It's just a wall charger with a USB-C plug. It's one feature I was pleased to see on the switch since I can charge in my car, at my desk, or anywhere I charge my phone. You can get these chargers for under $5.
Right. I just want a cord I can take with me without unplugging my dock. On the other hand I don't want to fry my Switch with a cheap cord. That's why I'm asking...
The main thing to look at when getting a charger for your Switch is the amps it gives you. The more amps, the more power you'll get. Check the Nintendo charger to see what amps it needs.