Product Name: 2019 Hottest 5 in 1 USB C Hub Adapter with SD/TF Card Reader/USB 3.0 for Notebook Model NO.: UCN-522 Signal Processing: USB 3.1/USB Type-C Hub Size: Desktop Ports: 5-8 Structure Function: Charging+Data Transfer Interface Type: USB3.1 Type-C Trademark: Customized Transport Package: Customized Specification: USB3.0/SD/TF Origin: China HS Code: 8517623500 Product Description 2019 Hottest 5 In 1 USB C Hub Adapter With SD/TF Card Reader/USB 3.0 For Notebook 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. 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.Convinient USB-C To Card reader for USB-C/Type-C/Thunderbolt 3 devices to access files from SD/TF card reader, perfect for Photographer or designer,etcWorking temperature: 40-45ºC