Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)


Powered USB

See PoweredUSB.


(1) (powered USB) A USB port on a computer that can charge a portable device even when the computer is turned off, as long as it is plugged into the wall.

The Yellow USB
The yellow USB port is live for charging even when the computer is turned off.

(2) (PoweredUSB) A high-power USB interface from IBM that provides six amps at 5, 12 and 24-volts. Used for peripherals that need more than the standard USB maximum 500 milliamps, power is transferred in separate wires within the cable. See USB.

Sockets on the Host Side
The power socket is stacked above the standard USB socket, and PoweredUSB plugs insert into both cavities. Notice how sockets are keyed differently depending on voltage. The other side of the cable is typically permanently attached to the peripheral device.

Personal Use Only

Before/After Your Search Term
POWER8powerline adapter
PowerBookpowerline bridge
PowerBuilderpowerline Ethernet bridge
PowerCDpowerline network
powerchippowerline networking
powered eSATApowerline USB
powered EthernetPowerMac
powered speakerPowermat

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
ProgrammingHealthcare IT
System design