Connect the USB device to another computer.Connect the USB device to another USB port.You should see a device disappear from System Information when you remove the USB device, and it should appear again when you reconnect it. Wait a few minutes, and click File > Refresh Information. Open System Information and disconnect the USB device from your computer.If you install a new USB device and Mac OS does not detect it, you can complete the following tests to identify the issue: emv smart card reader software, Emv 2000 Level 1 Approved & Supports 3v & 5v Cards Cac Compatible For Use With Cac Card Software Usb 2.0 Power/scan Led. Click About This Mac > More Info > System Report.In the top-left of the screen, click the Apple icon.To open System Information, complete the following: You can find the name of the chipset by navigating to, searching for the product ID, and clicking the Technical Specifications tab. Designed to add a smart card reader to your USB equipped PC or Mac desktop or notebook computer Compliant with most major smart cards, contact type only. The USB device is displayed in System Information, under the name of the chipset. Examples of appropriate headings for a USB video adapter include 'USB without the driver installed' or 'Graphics and Displays'. To determine if Mac OS detects your USB device, you need to open System Information on your computer to see if your USB device is listed under the appropriate heading or is listed with an error (for example, 'Device has not been configured').
