1. Material: industrial plastic anti-high-temperature and iron shell 2. Data transfer rate up to 5Gbps 3. Copper conductor for maximum conductivity and reliablity 4. High density double shielding for maximum rejection of EMI and RFI 5. Plug and play driver less installation Backward compatible with USB 3.0 / 2.0 / 1.1 Fits inside 3.5 inches open bay GL3510 Chip Connector: 2xUSB3.0+1xTYPE-C+TF/SD+AUDIO 19/20Pin USB 3.0 connector for USB 3.0 Hub Support System: for Windows XP/7/8/10/11/2003/for MAC/for Linux OS. USB 3.0 Cable: 0.6M Audio Cable: 0.6M Speed: USB3.2 GEN1 5Gbps Note: The 20 Pin USB 3.0 connector is actually 19Pin, as one pin of the connector is blocked up. note: 1: SD/TF cards cannot be used at the same time. 2: The 3.5MM jack is shared by both the earphones and microphone. Colour:Black Material:PC+Aluminum Alloy Package Contents: 1 x 3.5inch Floppy USB Front Panel(Due to different product batches, the appearance may vary, which does not affect the use)