HP BL860c i4 Installation Manual page 26

TUI Text user interface
U
UART Universal asynchronous receiver-transmitter
UEFI Unified Extensible Firmware Interface, replaces EFI.
UID Unit identification
UPS Uninterruptible power supply
USB Universal serial bus
V
VCM Virtual Connect Manager
vMedia Virtual media
VRM Voltage regulator module
W
WBEM Web-Based enterprise management
26 Standard terms, abbreviations, and acronyms