IEI Integration NANO-9453 v1.10 - Manual (Page 227)

NANO-9453 EPIC Motherboard
Page 207
automatic status checking technology implemented on hard disk drives.
UART Universal Asynchronous Receiver-transmitter (UART) is responsible for
asynchronous communications on the system and manages the system’s
serial communication (COM) ports.
UHCI The Universal Host Controller Interface (UHCI) specification is a
register-level interface description for USB 1.1 Host Controllers.
USB The Universal Serial Bus (USB) is an external bus standard for
interfacing devices. USB 1.1 supports 12Mbps data transfer rates, while
USB 2.0 supports 480Mbps data transfer rates.
VGA The Video Graphics Array (VGA) is a graphics display system developed
by IBM.