Serial communication used to be one of the major ways to connect peripherals like scanners, joysticks and printers to PCs for several years. One of the most commonly used cable connector for this type of communication was 9-pin D-Subminiature connector which is also known as DB9 cable or a DE-9 cable. DB9 serial cables has nine pins which were enough to carry data in the series. But it has certain drawbacks which made their usage less frequent. People started to prefer USB cables over DB9 cables. However, if you shop for electronics, you will still find several devices having DB9 cables or ports on them. Let us check out some of the advantages and disadvantages of DB9 D Subminiature Connectors. Advantages of DB9 Subminiature Connectors DB9 connectors have several advantages. You can easily customize them with 9 individual pins to carry serial data. Although the speed of these connectors is low as compared to other standards like USB, the length of these cables is quite long.
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