Uniersal Serial Bus Or better known as USB. Definition Of USB itself is a way of a communication between equipment with the host controller. USB is often found in printers, scanner, smartphone, Mobile Phone, Digital Camera, Flashdisk, etc. Before any USB, first known serial and pararrel port. but for now, the USB port has become the standard communication port.
USB 2.0
Was the USB 2.0 technology introduced in about April 2000. For the transfer rate (transfer rate), USB 2.0 Can REACH a maximum of 480 Mbit / sec. But in Practice, rarely get USB 2.0 speeds Above 300 Mbit / sec. In addition, USB 2.0 Power Supply requires a maximum of 500m. As for the pin plug in a USB 2.0 consists of 4 pieces.
USB 3.0
Unlike a USB 2.0, USB 3.0 technology was introduced in 2007, when the benefits of the USB 3.0 USB 2.0 data transfer rate (transfer speed), which compares brought up to 5 Gbit / sec. Wow, almost 10x USB 2.0 right? Another difference is the length of data cable problems. If USB 2.0 recommended, the maximum cable length of 3 M manambah keep the data transfer rate is correct. In USB 3.0, and the cable length is no longer a factor that affects the data transfer rate: USB 2.0 requires also a maximum power of 900 Magistrates.
Another advantage of USB 3.0, USB 2.0 with its full double, so that the USB host can send and receive data continuously comparing means. As for the pin connector USB 3.0 has a PIN of 5 pieces