Micro-Star USB Enhanced Host Controller

Windows device driver information for Micro-Star USB Enhanced Host Controller

The Micro-Star USB Enhanced Host Controller is created and manufactured by Micro-Star International, Adaptec Incorporated. A hi-speed USB host controller is already built into recent computers, while older computers can be updated with the hardware. A controller is not expensive and can be bought anywhere computers are sold. The hi-speed USB host controller is a card that can be easily installed into any accessible slot in the motherboard. The back-facing plate of the controller offers two or more hi-speed USB ports. To take advantage of USB 2.0 speeds, both the computer and the device connected into the USB port must comply with the 2.0 standard. A hi-speed USB host controller is not capable of making a USB 1.1 device operate at 2.0 speeds. Hi-speed controllers are backwards compatible, though, they fall back to the slower 1.1 standard for devices that need it.

The Micro-Star USB Enhanced Host Controller is a register level interface which permits a host controller for USB or FireWire to interact with the Operating System of a personal computer. On the expansion card or motherboard controller, this engages a lot of custom logic, with digital logic machines in FPGAs plus analog circuitry controlling the high speed varying signals. On the software part, it needs a device driver which is called a Host Controller Driver, or HCD. One of the several advantages of USB ports is that they can function in a daisy chain. One hi-speed USB host controller can control many USB ports. If the computer does not contain enough USB ports for the requirements, a USB hub can be added for a few dollars. The hub connects into a USB port while presenting a “bay” of extra ports. Some devices, however, such as digital cameras or iPods may need a direct port or a powered hub. Powered hubs contain their own A/C adapters. It is highly recommended you run a free registry scan for and Micro-Star USB Enhanced Host Controller errors before installing any driver updates.