Simply put, the 1394 interface is an interface similar to USB, but the transmission speed is higher than usb, and it is generally used for high-speed data transmission, such as cameras.

1394 laptop jack Details

       The 1394 interface is a serial standard developed by Apple. Like the USB interface, the 1394 interface also supports peripherals for hot-swapping, providing power for peripherals, eliminating the need for peripherals to provide power, connecting multiple devices, and supporting simultaneous data transfers.

       It is divided into two transmission modes: Backplane mode and Cable mode.

       The minimum rate of the Backplane mode is also higher than the highest rate of USB1.1, which is 12.5 Mbps/s, 25 Mbps/s, and 50 Mbps/s, respectively, and can be used in most high-bandwidth applications; the Cable mode is a very fast mode. At 100 Mbps/s, 200 Mbps/s, and 400 Mbps/s, uncompressed high-quality data movies can be transmitted at 200 Mbps/s.

The difference between 1394 jack and USB interface

       USB interfaces are often used in low-bandwidth applications such as connecting digital cameras and portable audio players. The 1394 interface is generally used in high bandwidth applications such as connecting digital video cameras and external hard disks.

Extended reading: The difference between 1394b interface and 1394 interface

       1394b is an upgraded version of 1394 technology and is the only home networking standard designed specifically for multimedia-video, audio, control and computers. It implements a high-performance home network through low-cost, secure CAT5 (five classes). 1394a has been offering products since 1995, and 1394b can provide transmission speeds of 800 Mbps/s or higher.

       It is worth mentioning that the vast majority of mainstream computers now do not have 1394 interfaces. To use them, you must purchase related interface cards and add additional expenses. At present, there are few external optical storage devices with simple 1394 interface. Most of them are multi-interface products with 1394 and USB interfaces at the same time, which is more flexible and convenient to use.