Description: brand new and high quality. Feature: The latest USB3.0 technology provides extremely fast 5Gbps transfer rate! Support data bidirectional transmission, backward for USB2.0, 1.1. The standard 3.0 connector provides excellent electrical conductivity, enabling high-speed data transfer and fast interface for the interface. It helps protect the USB interface and is durable. The cores are all made of high quality tin-plated oxygen-free copper, which increases the signal transmission surface, resists oxidation and has a service life 50 times higher than that of ordinary products. The wire is made of aluminum foil, and the woven mesh is double-layered, which has for stronger anti-interference ability and more stable signal transmission. It can be used when notebook, desktop dead angle, no corner limit, easy to use. It is suitable for family, study, living room, bedroom, office, business, conference, education, entertainment, etc. USB3.0 is more efficient in power supply and optimizes low power, providing up to 900mA per USB port to ensure that connected devices get enough power. USB3.0 cable provides data transfer speeds up to ten times higher than USB2.0. Support for WINDOWS2002/2003/XP/Vista/WIN7 system. Extension Cable only, other accessories demo in the picture is not included! Specifications: Item Type: Extension Cable Material: Metal Head+PVC Wire Cable Length: 30cm/11.8in, 60cm/23.6in Color: Black Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Extension Cable