The Linedock is an external battery and USB-C hub that’s sized to fit under latest MacBooks and MacBook Pros. It also has optional 256GB or 1TB SSD storage. It has a 20,000mAh battery as well as 3 USB-C ports, 3 USB-A ports, SD card slot, HDMI and Mini DisplayPort.
Branch Designs’ port hub fit snugly on the side of the latest MacBook Pros. They take up both USB-C ports on either side and give you one USB-C port, an HDMI port, three USB 3 ports, a microSD slot and an SD slot. Available in two sizes: one for the 13″ and one for the 15″ MBP.
In Apple’s endless quest to reduce thickness and weight, they trimmed nearly all of the ports from the new MacBook Pro. HyperDrive brings them back, trading two USB-C ports for HDMI, microSD/SD, Thunderbolt 3, two USB 3.1 ports, and a USB-C port for good measure.
Satechi’s compact USB Type-C Hub has three USB 3.0 Type-A ports, an SD card slot and a microSD card slot. Its size has some trade offs though. You can’t charge the new MacBook while this is plugged in, and it doesn’t supply enough power for tablets or external drives.