Because HDD/SDD needs more power, so this adapter only allow connect 1 HDD/SSD and this adapter won’t support Apple USB Super drive.

Super speed USB 3.0 ports(at full-speed): allow 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.

4K video USB-C to HDMI Adapter: mirror or extend your screen with USB C hub HDMI port and directly stream 4K UHD 30Hz or full HD 1080P video to HDTV, monitor or projector.

Usb-c hub (5-in-1): extend one 4K UHD HDMI port, two Supper speed USB 3.0 Ports, one SD Memory Card slot and one TF memory card slot from one USB-C/Thunderbolt 3/ Type C port.

If your macbook only have 1 usb c thunderbolt 3 on the one side, then this mac pro adpater will not support for it This adapter designed for new usb c MacBook Pro Air 13 15 16 inch 2017 2018 2019 2020 2021 with 2 thunderbolt 3 on the one side.

Aluminum Design Slim & Elegent & Portable with a sleek anodized aluminium body provides better heat dissipation.

Quickly to charge your MacBook Pro and provide stable transferring data, worry-free about power storage Powerful USB C /Thunderbolt 100W Power-delivery function to keep your MacBook Pro Air laptop charging all the time.

The USB C Adapter Macbook allows miro sd and SD card reader can be read at the same time You can view your photos and videos anytime, anywhere, quickly and easily. Convenient and Fast Speed Micro SD/TF Card Reader for MacBook Pro Air,Easily expand SD and TF slots to your Mac, speed up to 104Mb/s, supports up to 256G SD card.

Effortless USB 3.0 Data Transfer(USB Adapter for MacBook Pro Air): This macbook air adapter accessories allows you to connect usb devices: keyboard, mouse, hard drive, etc to MacBook, up to 5Gbps data transmission speed, providing convenience to your life and work and improving your work efficiency, This MacBook pro USB Hub Adapter USB C Dongle won’t support apple usb super drive.

It is a great usb c accessories set for your new macbook pro/air MacBook Pro Adapter USB C (6 in 1): Special Designed for New MacBook Air/MacBook Pro 13 15 16 inch 2021 2020 2019 2018 2017: This MacBook Pro Adapters Expand your MacBook Pro Air into 6 ports for your daily use: USBC To 3 USB 3.0 ports+SD Micro SD Card Reader+USB-C 100W Power Delivery Thunderbolt 3 Port.

Powered usb hub for macbook pro