There are three HDMI ports and three DisplayPorts, all of which support 4K displays at up to 60Hz, along with a Gigabit Ethernet port, a 100W USB-C PD port for charging purposes. two USB-C ports that support 10Gb/s transfer speeds, a USB-A port that supports 10Gb/s transfer speeds, two additional 5Gb/s USB-A ports, and an SD/micro SD card slot that supports transfer speeds of 104MB/s.
The dock is designed to sit under the MacBook Pro, propping the notebook up a bit and giving it strong Titanium PowerBook vibes:
The dock connects via USCB-C, and multiple cables are required, but they are short and included with the dock.
You can back the device on Indiegogo, where it has already met its funding goal and then some. Pricing starts at $124 for early bird backers.
If I used my MacBook Pro as a desktop replacement, I would be very tempted by this thing.