Smart card reader with Micro USB Connector. Portable and lightweight, the ACR38U -ND PocketMate II Smart Card Reader is a USB-sized device that transforms into a smart card reader for full-sized contact smart cards with just a single swivel motion. With its MicroUSB OTG interface, it supports most smartphones and tablets, and can be easily integrated with any mobile device running on the AndroidTM platform versions 3.1 and above. Additionally, it may be used with Windows, Linux, or Mac operating systems, because of its PC/SC and CCID compliance.