Feature: 100% brand new and high quality. Quantity: 1 LED indicator for power status Multiple USB 3.1 interface support plug and play. hot swap, easy to use and carry. Support over current and under current protection. Support USB 3.1/3.0 super speed (5Gbps) transmission, downward compatible USB2.0 Driver free, support windows XP, windows 7, 8 and Mac OS, Linux. Independent supply provides power supply to connect devices. The devices connected to the 3-Port USB 3.0 Hub must not exceed a combined current of 5 volts 900 mAh. The power supply is not included. USB 3.0 interface. High speed data transfer up tp 5 Gbps. Fast transfer rate for reliable copy/download/backup. Fast transfer rate for reliable copy/download/backup. Card Compatibility: MS,M2,SD,TF Size:7.7cmX5cmX2.5cm ? Package: 1X New For MacBook USB-C Type C USB 3.1 HUB High Speed 3Port 3.0 HUB Adapter Note: Without retail box.