Features: Fast speed transmission, OTG function: Supports USB On The Go (OTG) function, allowing device to connect and control external USB devices as a host. Ctype to USB 3.0: Convenient to convert Ctype interfaces to USB 3.0 interfaces for fast data transfer. Mobile card reader: supports reading various storage cards, such cards., making it convenient to view, backup, or share the storage cards on the phone. Light : Some models LED indicator lights, providing visual prompts of connection or working status. Aluminum: aluminum , it good durability and heat dissipation, and also fashionable appearance. Car mounted USB charging Converters: suitable for car, convenient for connecting USB drives, charging mobile phones, and other operations. Multifunctionality: Supports multiple functions such as data transmission, storage card reading, and charging, providing convenient mobile device. These features make OTG Adapter, Ctype to USB 3.0 mobile card readers with lights, and aluminum car USB charging converters practical accessories that can meet your different needs during mobile device use. Specifications: Materials: Aluminum Size: 3x1.6cm Color: Redness, Gray(optional) Package Includes: 1PC Ctype to USB Adapter note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.