7 in 2 MacBook Pro Adapter: This Adapter expand your MacBook Pro ports into 2xUSBA 3.0+HDMI(4K@30Hz)+Thunderbolt 3+USB C 3.0 and SD/TF card reader. Vivid 4K HDMI: MacBook Pro Accessories with 4K HDMI Port mirror or extend your screen with USB C Adapter's HDMI port and directly stream 4K UHD@ 60Hz or Full HD 1080p video to HDTV, monitor or projector. Super Speed USB 3.0 Ports: USB C Adapter allows you to connect keyboard, mouse, hard drive,etc to MacBook Pro,Up to 5Gbps data transmission speed, down compatible with USB A 2.0 and below. Multi-Function Thunderbolt 3: Mac Dongle with a thunderbolt 3 supports data transfer up to 40Gb/s, up to 5K displays, up to 100W power. Another usb c port is only for data transfer, speed usb 2.0. Read SD TF Cards Simultaneously: USB C Adapter convinient USB-C To 3.0 Card reader for USB-C/Type-C/Thunderbolt 3 devices to access files from SD/TF card reader, quickly view your photos or videos, Speed up to 104 Mbp/s.