Just by using 1 usb c 1 to 6 hub, you can equipped your computer with extra:
1x 4K ; (Support up to 4k@30Hz)
2 USB 3.0 port; (Speed up to 5Gbps/s; support power at 5V/0.9A)
1 SD card slot; (Speed up tp 480Mbps; Support SDHC up to 32GB, SDXC up to 2TB.)
1 Ethernet port. (Support 10M,100M,1000M)
1 USB C charging port; ( Support 5V/3A charging)

What you can do with this USB C Adapter Hub:

1.Mirror photo or video through Port to bigger screen
2.Read data from hard drive, flash drive through USB 3.0 port.
3.Read date from SD Card or MicroSD card (An extra microSD to SD Memory Card Adapter will include)
4.Connect your laptops with external keyboard, mouse and through USB 3.0 port.
5.Connect network through network cable to experience high speed network.
6.Charge your computer through USB C Female port.
7.Charge your other phones through USB 3.0 Port.
8.All above together.

6 - in - 1

1.4 resolution 4096 x 2160 at 30Hz frame rate with 24-bit color.
2-Port USB3.0 Support transfer speed at 5Gbps.
Card Reader SD (Secure Digital) and TF (TransFlash
USB-C (Type-c) Power Delivery - Charging your laptop/cell phone while connecting multiple peripherals and transferring data.
Gigabit Ethernet 10/100/1000 (RJ45)

Specifications:

Input: USB3.1 type C
Output Terminal: 1.4, 2-Port USB v3.0, v2.0, and v1.1 compliant, Card Reader SD TF, USB-C for Power Delivery
Gigabit Ethernet (RJ45) Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab and IEEE 802.3az specifications

The USB 3.1 Type-C to (4K), 2-Prot USB3.0, SD TF Card Reader, Type-C Power Delivery and Gigabit Ethernet Adapter is an ideal solution for adding more USB ports as well as a Gigabit wired network interface a great compliment for your Apple MacBook Pro 2017 all models and New MacBook 2017 and iMac 2017 all models or Google new Chromebook Pixel and other devices with Type C port. With this adapter, you can connect multiple USB3.0 or USB2.0 devices like printers, external Hard Drives and many more USB compliant devices including charging your cell phone.Video Adapter 4K: Mirror or extend your screen with the port and directly stream 4K UHD (30Hz.) or Full HD 1080p video to HDTV, monitor or projector. POWER DELIVERY: Charging your laptop/cell phone while connecting multiple peripherals and transferring data.

Compatible with latest Apple MacBook 2017 and MacBook Pro 2017 13"/15" with Touch Bar and iMac 2017 21"/27"