Engineering Abbreviations
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

U - UnBuffered output [IC]
UART - Universal Asynchronous Receiver/Transmitter
UAS - USB Attached SCSI
UBD - Universal Bus Driver
UDIMM - UnBuffered DIMM [Memory]
UDP - User Datagram Protocol [Protocol Acronyms]
uF - micro Farad, a unit of [Capacitance]
UFD - USB Flash Drive
UHF - ultra high frequency 300MHz - 3GHz
UHM - Ultra Hard Metric [cPCI Connector]
UI - Unit Interval
UI - User Interface
UICC - Universal Integrated Circuit Card
UID - Unit Identification IUID
UII - Unique Item Identifier IUID
UJT - Uni-Junction Transistor
UL - Underwriters Laboratories
U/L - uplink
ULF - ultra low frequency
ULP - Ultra Low Profile [DIMM Memory]
ULP - Upper Level Protocol [ULP Definition]
ULPI - UTMI+ Low Pin Interface
UMPC - Ultra Mobile PC
UMTS - Universal Mobile Telecommunications System
UPC - Ultra Physical Contact [Fiber]
UPS - Uninterruptible Power Supply
UPT - Universal Personal Telecommunications service
USART - Universal Synchronous/Asynchronous Receiver/Transmitter
USB - Universal Serial Bus
USB - upper sideband
USIC - User Specific Integrated Circuits
USIM - Universal Subscriber Identity Module
USNO - U.S. Naval observatory
USTA - U.S. Telephone Association
UT - Universal Time
UTC - Coordinated Universal Time
UTF - Unicode transformation format
UTI - Universal Transducer Interface [Sensor Buses]
UTMI - USB 2.0 Transceiver Macrocell Interface
UTP - Unshielded Twisted Pair [Definition of Twisted Pair]
UUT - Unit Under Test [UUT Example], [Test Acronyms]
uv - ultraviolet
UVLO - Undervoltage Lockout
UWB - Ultra-wideband
UXGA - Ultra Extended Graphics Array

PC motherboard

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