Manhattan usb to serial converters manhattan 151047 this usb to serial converter from manhattan helps aid the fact that most current laptops do not have a serial interface as this adaptor can be used to easily connect up to 4 serial devices modems digital cameras label writers card readers barcode scanners etc equipped with data transfer speed up to 225 kbit s moschip mcs7840 and automatic irq and i o address configuration manhattan 151047 usb to serial converter