... reader, single card reader, multi card reader, 2.0 card reader,2.Fully compliant with USB 2.0 specification, Backwards compatible with USB1.13..Friendly ... package, depends on customer's requirements.9. OEM service is provided, we have designing department to help you design package, this ... . if you have interesting, welcome to contact us by trader manager or by email USB 2.0 black colour 4 in one card ...