Simply connect it to a USB port on your computer. In a few seconds, the system will detect it and the LED goes green.

Now swipe any supported credit card in either direction.

You can also swipe I.D. to fill out the billing information (Only limited type of IDs are supported)

To use  this device you need to integrate your site with a payment method that allows you to charge credit cards on your own website. (PayPal does not allow that)