USB

USB currently has two versions; the maximum data transfer rate of USB1.1 is 12 Mbps, USB2.0 raised to 480 Mbps. Note: both physical interfaces are exactly the same, the difference on the data transfer rate entirely decided by the PC USB host controller and USB device. USB can provide device for maximum 5 V, 500mA of power through connection cable.

Three types of USB ports are:
-- Type A: generally for PC
-- Type B: generally for USB devices
-- Mini-USB: generally used in digital cameras, digital cameras, measuring instruments and mobile hard disk, etc.
Left connector is for Type A (connected PC), the right for Type B (connected device)

USB Mini

USB extension cable, generally should not be longer than five meters. Please identify the USB symbol on connector

USB defiber, each port can get 5V 500mA of power. Mobile hard drives and other large electricity can use this line to get additional power from the second USB port (500 +500 = 1000 mA)

VGA display port. VGA display port on the display card

Monitor uses a 15-pin Mini-D-Sub (also known as the HD15) port to connect to the PC through standard analog interface. Through appropriate adapter, you can also connect a simulating display to the DVI-I interface. VGA port transfers red, green and blue values signal (RGB) and horizontal synchronization (H-Sync) and vertical synchronization (V-Sync) signal.

VGA connector on the display signal line

ATA/133 (Parallel ATA, UltraDMA/133 or E-IDE)

This is the Parallel Bus used to connect a hard drive and optical drive (CD and DVD) and also called Parallel ATA (Parallel ATA). The latest version of parallel ATA uses 40-pin, 80 of the flat data cable to connect the motherboard and the drive. Each data line can connect up to 2 sets of device, it needs to set up device to the main disc (master) and the disk (slave), and the setting is generally achieved by the jumpers on the drive.

IDE data line, notice the connector blow-up and the lack of a pinhole

Warning: in majority cases, the blow-up on the data line connector can effectively prevent the line data inserting wrong, but some of the old data lines may not have such a design. Socket data lines, please follow this principle: data lines are marked on one side edge of color (usually red) at the motherboard IDE port should be marked with the number one side, in fact, that the edge of the first needle.

In addition, the data lines are marked on the verge of color should be near the driver's power cord. The same should carefully check the motherboard and drives on the IDE interface and data line connectors to ensure that they are missing needle and the cut marks corresponding to the location.

After use a data line to connect two devices, there is need to use the blue jumper cap in the following picture to set master and slave disk, and generally there is icon instruction on hard disk, or to visit the website of drive makers.