2-in-1 interface: This card reader adopts C 3.1, USB 3.0 interface design. And supports OTG function to meet your different needs Easy transfer: This card reader provides a convenient way to exchange files, photos and videos between your camera and phone High speed: This USB card reader adopts Type-C and USB 3.0, providing high-speed transfer and simultaneous reading of memory cards/memory cards Widely compatible: This storage card reader is suitable for USB flash drives, card readers, MP3 players, keyboards, digital cameras and other external devices Durable materials: This micro card reader is made of high-quality metal and electronic component materials. Compact and portable design is easy to carry Specifications: Material: metal+electronic components Interface: USB-A 3.0/USB-C 3.1 type Supported memory cards: USB-C, SDHC, USB-A, Micro SD Installation method: external connection Main functions: connect USB flash drives, card readers, MP3 players, keyboards, digital cameras and other external devices to complete data transmission Size: Approximately 66x27.5x9mm/2.6x1.1x0.4inch (manual measurement, slight error may occur) Interface type: USB/Type-C Applicable devices: mobile phones/tablets/computers