A USB card reader reads data from removable memory cards while connected to the computer’s USB port. It has one or more card slots on one side and a USB plug or cable on the other. It is often designed for mobile use, since the USB interface is found in most computers and supports plug-and-play installation. It is also hot-swappable, which means that it can be installed and removed without having to reboot the computer.
Types of USB Card Readers
Kinds of USB Card Readers include the following:
Multicard USB card reader
A multicard USB card reader supports more than one media card format. It usually comes in a box case that connects to the computer via a USB cable.
Single USB card reader
A single USB card reader can read only one media card format. It is only slightly bigger than the card it reads, and is usually small enough to plug directly into the port instead of using a cable.
Series USB card reader
A series USB card reader has two or more card slots in the same format. It may plug directly into the computer or connect through a cable.
Choosing USB Card Readers (Buying tips)
Connectivity: Choose a USB card reader with a USB 2.0 interface for faster transfer rates. Make sure it is backward-compatible so that you can use it with older USB versions as well.
LED indicator: Look for a USB card reader with indicator lights for monitoring transfer status and transfer speed.
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