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Superseded. Serial port, parallel port, game port, Apple Desktop Bus, PS/2 port, and FireWire (IEEE 1394) Universal Serial Bus ( USB) is an industry standard that allows data exchange and delivery of power between many types of electronics. It specifies its architecture, in particular its physical interface, and communication protocols for data ...
The written USB 3.0 specification was released by Intel and its partners in August 2008. The first USB 3.0 controller chips were sampled by NEC in May 2009, [4] and the first products using the USB 3.0 specification arrived in January 2010. [5] USB 3.0 connectors are generally backward compatible, but include new wiring and full-duplex operation.
Apple Lightning to USB-A cable. Lightning is an 8-pin digital connector. Unlike the 30-pin dock connector it replaced (and USB Type-A and -B connectors), it is reversible. [20] Most Lightning devices only supported USB 2.0, which has a maximum transfer speed of 480 Mbit/s or 60 MB/s. With USB 2.0, only one lane is in use at a time.
A USB cable, by definition, has a plug on each end—one A (or C) and one B (or C)—and the corresponding receptacle is usually on a computer or electronic device. The mini and micro formats may connect to an AB receptacle, which accepts either an A or a B plug, that plug determining the behavior of the receptacle.
The Retina MacBook Air was released in October 2018, with reduced dimensions, a Retina display, and combination USB-C/Thunderbolt 3 ports for data and power. The Intel-based MacBook Air was discontinued in November 2020 following the release of the first MacBook Air with Apple silicon based on the Apple M1 processor.
On October 30, 2018, Apple released a new MacBook Air with Amber Lake processors, a 13.3-inch Retina display with a resolution of 2560×1600 pixels, Touch ID, and two combination USB-C 3.1 Gen 2/Thunderbolt 3 ports plus one audio jack. The screen displays 48% more color, and the bezels are 50% narrower than the previous generation and occupies ...
USB-C plug. USB-C (SuperSpeed USB 5Gbps) receptacle on an MSI laptop. USB-C, or USB Type-C, is a 24-pin connector (not a protocol) that supersedes previous USB connectors and can carry audio, video, and other data, e.g., to connect to monitors or external drives. It can also provide and receive power, to power, e.g., a laptop or a mobile phone.
Note the five additional pins on the underside of the tongue of the USB 3.0 port. Additional power for multiple ports on a laptop PC may be obtained in the following ways: Some ExpressCard-to-USB 3.0 adapters may connect by a cable to an additional USB 2.0 port on the computer, which supplies additional power.