Product InformationIt is a contact smart card reader, smart card and SIM card are combined into one, with a smart card slot and a SIM card slot, which can be used separately or at the same time. Supporting ISO 7816-compliant Type A, Type B, and Type C (5V, 3V, and 1.8V) smart cards, it communicates with the PC environment through a USB interface compatible with different operating systems.System support: WindowsXP, Windows7/8/8.1/10, Windows Vista, Mac OSFeaturesUSB2.0 InterfaceSupport hot swapSmart card/SIM card, dual card slot designHigh-quality socket, which can support at least 100,000 times of card insertion and removalPackage included: 1 x Smart Card ReaderNotePlease allow 2-3 cm difference due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding(1 inch = 2.54 cm)