A USB flash device, such as a USB flash drive or a portable hard drive, is a miniature high-capacity storage device that utilizes a USB port and requires no physical driver. Simply by inserting a USB device into a USB port of a computer or server, you can conveniently and quickly exchange data.

As virtualization technology advances, USB passthrough has been introduced to enable USB flash devices, the physical hardware, to directly exchange data with VM instances. With this feature, you can easily access services including data backup, capacity expansion, and quick extension services such as antivirus rescue USB drives.

A security dongle is a hardware device that provides software protection. If connected to a parallel port or USB port of a computer, it can prevent unauthorized use of software and data, thus safeguarding intellectual property rights. Similar to a license, a security dongle can unlock software functionality and ensure that the software runs as expected.

As virtualization technology advances, you may need to migrate VM instances without interrupting your business. With the USB passthrough feature, you can forward a security dongle to a VM instance. This not only guarantees the stability and continuity of your business but also maintains data security.