1. Compatible with USB universal smart card reader: Goverment1D, National ld, , OWA, DKO, ""Ko, , card, etc.2. No need for drivers, no settings, automatic identification, super compatibility3. The ABS material shell of the contact smart card reader can prevent high temperature and wear without blocking adjacent ports, saving more space for nearby USB devices4. Small and portable unique design, the card reader can be unfolded and closed to save your spaceProduct Description: Model: CR335-OPEN-A & CR335-OPEN-CInterface: Type-CInstallation : external requirements: Windows7/8/10, Linux, OSStyle: SimpleType: Smart Card ReaderApplicable objects: general size: 13 x 2.6cmMaterial: ABScolour: whitePackage Contents: 1 x type-c card reader1 x Chinese and English instructionsOnly 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.