Definition: The chip inside a USB device that manages communication between the host system and the flash memory.
Explanation
A USB controller is the operational brain of the device. It decides how data is written, read, identified, and managed between the USB port and the NAND memory inside the product.
Example
Two flash drives may have the same storage capacity, but if they use different controllers, their reliability, speed behavior, and feature set can be very different.
Who This Is For
This is useful for IT buyers, engineers, duplicator users, and anyone comparing flash media beyond simple capacity numbers.
Related Terms
NAND Flash, MPTool, VID/PID, BOT, UASP
Also Known As
flash controller, usb flash controller, controller IC