Nice little device, does what it's supposed to do pretty well. The only gripe is that the mount on the Switch (presumably what it was aimed at) is missing, has a split, and wobbles a bit. USB-A port. So you can charge the Switch in the dock and use this device, but you have to move the device to the USB-A port on the side and use the adapter. The only problem is that a strange mushroom shape covers both USB-A ports. Either way, it's a nice unexpected feature.