The card reader supports hot swap, which is convenient to use. The card reader is designed with thickened connector, which allows for more stable and quicker transmission. Made of ABS material, the card reader is shock-proof, durable and lightweight to use. The length of the card reader is 3.5cm, width is 3cm and thickness is 0.7cm, so you can carry it outdoor conveniently with its mini and compact size. The card reader is suitable for transmitting data and documents between smartphones and other devices such as camera, car data recorder, computer and so on. Item Name: Card Reader Material: ABS Interface Type: Type-C, Micro USB(Optional) Card Slot: SD-Card Features: Compact, Plug and Play, Hot Swap Size Details: 3.5cm x 3cm x 0.7cm/1.38" x 1.18" x 0.28" (Approx.) Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. Package Includes: 1 x Card Reader(Others Not Included)