This is a contact smart card reader, smart card and two in one, there are smart card slot and slot, support single, support simultaneous use.It supports type A, type B and type C (5V, 3V and 1.8V) smart cards that comply with the ISO 7816 standard. It communicates with the PC environment through a USB interface compatible with different operating systems.Feature:USB2.0 standardSupport hot swapSmart card/, card slot designHigh-quality socket, which can support at least one hundred thousand card insertion and removal timesSpecification:Model: CR317Interface: USB 2.0Support card type: smart card + card slot designLine length: 90cmProduct size: 89 x 72 x 10mmSystem support: for WindowsXP,for Windows7/8/8.1/10,for Windows Vista,for OSMaterial: ABScolour: BlackPackage Contents:1 x USB 2.0 Smart Card ReaderOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.