I've got the 2016 rMB, and I've been looking for a suitable dock as well. I had the Elgato Thunderbolt 2 dock with my old 17" MacBook Pro and I loved it.
So far, I've tried the following:
Kensington SD4600P:
- requires a custom ethernet driver to be installed
- returned because I could not get any video output
IOGear GUD3C01:
- also requires custom ethernet driver
- also returned because I could not get any video output
UNITEK Universal Charging Docking Station:
- also returned because I could not get any video output
AV Access USB 3.1 Docking Station:
- absolutely does not support anything higher than 1080P
- most of the USB ports are USB 2.0, which is disappointing
HooToo Shuttle:
- works well, supports 4K video like the Apple adapter
- isn't really a dock, but so far it's the only thing that works
Having tried four products that didn't work right, it's hard to suspect that they were all "defective". Is anyone else having problems getting video out of their 2016 12" Retina MacBook?
I've tried a 27" ViewSonic VP2770 (2560x1440) monitor, a Dell 2408WFP (1920x1200) monitor and a Samsung 55" UHD 4K television. I've tried the HDMI port and the DisplayPort, and even converters to DVI.
Is my MacBook defective?