This data between the computer and the desired peripheral may be transferred need most peripherals own connection cable to the computer. The best known representative of data transmission cables, the USB connection cable. In addition to USB cable connection even further as LPT and COM exist. However, these are now increasingly displaced from the USB cable, as it is universally and significantly better data rates.
USB (Universal Serial Bus)
Since the USB standard is constantly developed further, he is now in version 3 and spawned numerous different cable. It is important that the USB standard is generally downward compatible. You can operate 3.0 hard drive to a USB 2.0 port, therefore, a USB, but the speed of the lower terminal is of course used. The USB type A / B is one of the cabling the most used since it is used for the majority of the periphery. These mainly include printers, scanners or external docking stations. In the smartphone and digital camera range micro-USB cables are used very often, because the connector allows small devices. Due to the high data rate, the USB port is also particularly suitable for external hard drives and memory.
Also, the network cable or patch cable is a data transfer cable and is used to link different network devices, such as routers, switches, computers, network printers or cameras used. The CAT designation shall specify the used shielding and equipment of the cable. For the installation of network cables CAT7 cables are mostly used. For connection to the PC, however, preferred CAT5 cables are used. LWL (fiber optic) cables are used further distances due to their higher range, the connection between buildings or to bridge. Again, there are various connections such as ESCON, SC, ST or LC.
Further data transmission cable
The COM and LPT cable are used particularly for older peripherals. The most obvious difference is the much larger connectors and power compared to USB. Today, these are, however, more and more displaced by the USB standard and many motherboard manufacturers no longer integrate these ports directly on the motherboard , so they have to be retrofitted with expansion cards. For data transfer between the computer and external hard drive, FireWire and eSATA cable , in addition to USB, used . However, Firewire has in this area so far not enforce properly and is mainly used for professional audio and video cards. The eSATA port is often to use by a bracket that comes with the motherboard, or integrated directly onto the motherboard and performs a SATA connector on the outside by these external hard drives. Here he supported as well as an internal SATA port also eg the hotplug function and provides the same data transfer rate available.