Features: Environmentally friendly wires and connectors with excellent electrical conductivity and high-speed data transmission. Twisted pair data conductors for impedance matching: minimize signal crosstalk on data lines. Supports ultra-fast data transfer rates up to 5 Gbps. Elastic PVC jacket: flexible, durable, and resistant to breakage. Overmolded design for enhanced durability and reliable, error-free data transmission. Endshield technology helps reduce signal interference and ensures compatibility with current USB specifications. Braided copper mesh with aluminum-platinum double-layer shielding effectively reduces electromagnetic and radio frequency interference. Specifications: Main control chip: Two fixed screw holes 28mm, USB port exposed 10mm Product color: Blue Product interface: One 19-pin/20-pin female connector and dual USB 3.0 Type-A female ports Supported systems: Windows XP/2003/Vista/2008/Windows 7/Windows 8 (32/64-bit), Linux Cable length: Approximately 0.5 m (1.64 ft) Package List: 1 x USB 3.0 Data Cable 1 x Screw Kit Note: Please verify that your chassis has two fixed screw holes spaced 28mm apart before purchase to ensure compatibility. This product is a data cable only. It must be used with a USB 3.0 expansion card or a USB 3.0 device (such as an external hard drive enclosure or USB flash drive) to achieve USB 3.0 speeds. When connected to a USB 2.0 port, it will operate at USB 2.0 speeds. USB 3.0 uses a 20-pin double-row connector, one pin of which is removed, also known as 19-pin.