25-port parallel port +9 pin serial expansion cable / baffle (DB25 DB9)
Serial port parallel to the baffle line . You can pick up the printer and 9-pin serial device,
with this do not have to buy parallel port cards and serial cards, and very good!
At present, we are still in some of the motherboard can see the COM interface and LPT interface figure. These interfaces will not only take up a lot of space on the back interface, and now do now use these interfaces, very few users. Indeed, many MCU development board is still using the COM interface, but perhaps manufacturers in the design of the motherboard can be more flexible when some. For example, some manufacturers will be the original LPT interface made of the form of pins. This is not only a lot of the size of the reduction, but also to meet some special needs. Users who need this interface, only need to buy a transfer cable, you can use these old-fashioned interface. Can be described as two birds with one stone
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