Welcome to the store! 1. Eco-friendly wires and connectors, with excellent electrical conductivity and high-speed data transmission. 2. Twisted data conductor pair (impedance matching): Minimize data line signal crosstalk! 3. Provides ultra-fast data transfer speeds of up to 5 Gbp/s. 4. Elastic PVC jacket: flexible and not easy to break, durable. 5. Over-molded, not easy to break, durable, ensures flawless data transmission. Features: Eco-friendly wires and connectors, with excellent electrical conductivity and high-speed data transmission. Dataline twisted pair (impedance matching): Minimize data line signal crosstalk! Provides ultra-fast data transfer speeds of up to 5 Gbp/s. Elastic PVC jacket: flexible and not easy to break, durable. Over-molded, not easy to break, durable, ensures flawless data transmission. Endshield: Helps reduce signal interference and is 100% compatible with current USB specifications. Braided mesh and aluminum-platinum double-layer shielding: can greatly reduce electromagnetic interference and radio frequency interference. Specification: Main control chip: Two fixed screw holes 28mm, USB port exposed 10mm Product Color: Blue Product Interface: One 19pin/20pin female mother, the other dual USB3.0 A female Support System: For WinXP/2003/VISTA/2008/Windows 7/WIN8 32/64BIT/Linux Line Length: Approx. 0.3 m/0.98 ft Package List: 1 * USB3.0 Data Cable 1 * Screw Kit Note: Make sure the screw holes in your chassis are two fixed screw holes 28mm at the time of purchase. Is this line suitable? This product is just a data cable. It must be used with a USB3.0 expansion card or a USB+USB3.0 device (hard disk box or USB flash drive) with a USB3.0 interface to achieve USB3.0. If connected to a USB2.0 interface, it can only run at the speed of USB2.0, this is a common sense problem, please be aware! USB3.0 is a double row total of 20PIN, one of which has been pulled out of the needle, so it is also called 19PIN.