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Computer ports and connections.

Below is a table of all types of external computer connections, click on any of the pictures to enlarged the image.
Audio JackBlack
Rear Surround for 5.1 & 7.1
Audio output symbolThe Audio Jack is also termed a phone jack, phone plug, and jack plug. Specific models are termed stereo plug, mini-jack, mini-stereo, headphone jack.

The Audio Jack is a TRS connector (tip, ring, sleeve) which has a family of similar connectors. It is cylindrical in shape, typically with three contacts, although sometimes with two (a TS connector) or four (a TRRS connector).
Audio JackBlue
Stereo Line In
Audio input symbol
Audio JackGrey
Middle Surround for 7.1
Audio output symbol
Audio JackGreen
Front speakers
Headphones symbol
Audio JackOrange
Center out
Audio output symbol
Audio JackPink
Mic symbol
CoaxialTVSignified by the device it should be connected to.Coaxial cable is used as a transmission line for radio frequency signals. Its main applications are for feedlines connecting radio transmitters and receivers with their antennas, and distributing standard definition television signals.
CoaxialRadioSignified by the device it should be connected to.
Signified by the device it should be connected to.Component video is a video signal that has been split into two or more component channels. Like composite, component-video cables do not carry audio and are often paired with audio cables.

The various RGB (red, green, blue) analog component video standards use no compression and impose no real limit on color depth or resolution. Most modern computers offer this signal via the VGA port.
Signified by the device it should be connected to.
Signified by the device it should be connected to.
VideoAn RCA (Radio Corporation of America) connector, commonly used to carry audio or video signals.
DisplayPortDPDisplayPort symbolDisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). It's primarily used to connect a display device such as a monitor, though it can be used to transmit audio, USB, and other forms of data.
(Mini DisplayPort)
DisplayPort symbol
Display out symbolThe Digital Visual Interface (DVI) is a video interface standard covering the transmission of video between a source device (such as a personal computer) and a display device (such as a monitor or flat screen TV).
Display out symbol
(Integrated A & D)
Display out symbol
DVIMiniDisplay out symbol
e-SATA (External Serial Advanced Technology Attachment) is a computer interface for connecting mass storage devices such as hard disk drives.
Firewire4 Pin
(Firewire 400)
Firewire symbolThe IEEE 1394 interface also known as i.Link, developed in the early 1990s by Apple as FireWire, it's a serial bus interface standard for high-speed communications and isochronous real-time data transfer. The 1394 interface is comparable with USB and often those two technologies are considered together, though USB had won the popularity contest.
Firewire6 Pin
(Firewire 400)
Firewire symbol
Firewire9 Pin
(Firewire 800)
Firewire symbol
Game15 pin
HDMI symbolThe game port is a device port found on computers for connecting joysticks and other input devices until superseded by USB
HDMIAHDMI symbolHDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting any uncompressed TV or PC video format.

HDMI is currently at version 1.4 and to get 3D over HDMI, the Ethernet channel and a display resolution of 4096×2160 you must have all hardware including the cable at version 1.4 as version 1.3 does not have these additional features.
HDMIC (Mini)HDMI symbol
HDMID (Micro)HDMI symbol
IECC5 / C6
Mickey Mouse
IEC (International Electrotechnical Commission) is a specification for non-locking electrical power couplers for the connection of power supply cords to electrical appliance up to 250V.
IECC7 / C8
Figure 8
IECC13 / C14
Kettle lead
LANRJ45LAN symbolA local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school or office building.
ModemRJ11Modem port symbolA data/fax modem port, used for dial-up connections through a telephone line to get access to the internet (before broadband this was how it was done). Also with the right software, it can be used to send faxes.
ParallelBurgundyParallel port symbolA parallel port is a type of interface found on computers for connecting various peripherals. In computing, a parallel port is a parallel communication physical interface. It is also known as a printer port or Centronics port.
Stereo with White
Signified by the device it should be connected to.An RCA (Radio Corporation of America) connector, sometimes called a phono or cinch connector, is a type of electrical connector commonly used to carry audio or video.
White or Black
Stereo with Red
Signified by the device it should be connected to.
PS/2GreenMouse port symbolThe PS/2 connector is a 6-pin Mini-DIN connector used for connecting some keyboards and mice to a PC compatible computer system. Its name comes from the IBM Personal System/2 series of personal computers.
PS/2PurpleKeyboard port symbol
S/PDIFCoaxialDigital AudioS/PDIF stands for Sony/Philips Digital Interconnect Format (more commonly known as Sony Philips Digital Interface). It's a digital audio interconnect used in consumer audio equipment over relatively short distances. The signal is transmitted over either a coaxial cable or a fibre optic cable with TOSLINK connectors.
4 pin
S-Video input symbolSeparate Video, more commonly known as S-Video, is an analog video transmission scheme, in which video information is encoded on two channels carrying standard definition video, but does not carry audio on the same cable.
4 pin
S-Video output symbol
S-Video7 pin
Input or Output
As above.
ScartInput or OutputSignified by the device it should be connected to.SCART (Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs or Radio and Television Receiver Manufacturers' Association) is a French-originated standard for connecting audio-visual equipment together.
SerialTeal or
Serial symbolA serial port is a serial interface through which information transfers in or out one bit at a time. It's the old method of data transfer from the computer to devices such as terminals and various peripherals.
(Mini DisplayPort)
HDMI symbolThis is a revolutionary technology that supports high-resolution displays and high-performance data devices through a single port. It uses the same connector as the MiniDP and is backward compatible with all miniDP devices.
USBAUSB symbolUniversal Serial Bus (USB) is an industry standard developed that defines the cables, connectors and communications protocols used in a bus for connection, communication and power supply between computers and electronic devices. The first major revision was made to the USB 1.1 specification with transfer speeds called Full Speed (FS) at 12 Mb/s. The USB 2 specification is called High Speed with transfer speeds (HS) at 480 Mb/s.
USBBUSB symbol
USBMini-AUSB symbol
USBMini-B (4 pin)USB symbol
USBMini-B (5 pin)USB symbol
USBMicro-AUSB symbol
USBMicro-BUSB symbol
USB 3AUSB 3.0 symbolUSB 3.0 is the third major revision of the Universal Serial Bus (USB) standard for computer connectivity. USB 3.0 has transmission speeds of up to 5 Gbit/s, which is 10 times faster than USB 2.0 (480 Mbit/s).

USB 3.0 is easily identified by the blue colouring in the port and connector.
USB 3BUSB 3.0 symbol
USB 3Micro-BUSB 3.0 symbol
USB 3.1Type-CA reversible USB connector. The plug can fitted upside down.
VGAStandardDisplay out symbolA Video Graphics Array (VGA) connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector is found on many video cards, computer monitors, and some high definition television sets. On laptop computers or other small devices, a mini-VGA port is sometimes used in place of the full-sized VGA connector.
VGAMiniDisplay out symbol