Product Parameters: 1. Product Size: 88*24*10mm 2. The Main Control Chip: GL3510/GL823K 3. Interface Type: USB3.0*3/TF*1/SD*1 4. Appearance: Face Shell 5. Material: Aluminum Alloy 6. Plug material: ABS Plastic Product Use: Support all models with TYPE C and Thunderbolt 3 series notebooks and for MAC BOOK with type c notebook Product Features: 1. Input port interface: adopts the latest USB3.1 type c interface supports forward and backward insertion 2. Data transmission high rate can reach USB3.1 5Gbps 3.USB3.0*3 transmission rate 5Gbps 4.SD card Single drive letter Transmission rate 480Mbps 5.TF card Single drive letter Transmission rate 480Mbps 6.CARDREAD: SD/TF supports up to 512