1Data transmission is up to 115200bps. And such expansion card is compatible with IEEE 1284 standard parallel port. 2Support SPP / Byte / ECP mode, riser card works to provide 2 sets of RS 232 9 Pin modules. 3RS-232 Pin 1 / Pin 9 can be set to supply voltage. And such adapter card supports exquisite craftsman, light and practical 4Converter card's installation is simple, which does not require particularly complicated operations. 5Expansion card can be connected with credit card machine / invoice printer / barcode scanner, etc.Item Type: Expansion card Data Transmission: Up to 115200bps Data Bit: 5, 6, 7, 8 Parity: None, even, odd, space, mark Stop Bit: 1, 2 Connectable: Credit card machine / invoice printer / barcode scanner, etc. Parallel Port: Compatible: IEEE 1284 standard parallel port Support: SPP / Byte / ECP mode1 x Expansion Card1 x Bezel1 x Flat Cable