1. It is easy to allow more serial and parallel devices to be connected to your computer.
2. Two 9-pin RS-232 DB9 external serial ports and one DB 25 external parallel LPT port.
3. Complies with PCI Express Specification Revision 1.1.
4. WCH382 master chip, stable and powerful.
5. PCI Express single lane (x1) bus bandwidth 2.5 Gbps.

Specification:
Features:
1. It is easy to allow more serial and parallel devices to be connected to your computer.
2. Two 9-pin RS-232 DB9 external serial ports and one DB 25 external parallel LPT port.
3. Complies with PCI Express Specification Revision 1.1.
4. WCH382 master chip, stable and powerful.
5. PCI Express single lane (x1) bus bandwidth 2.5 Gbps.
6. Support for DOS, 8 / 7 / Vista / / 2000 / Server 2003-2008 32/64 bit, operating system.
Specifications:
Compliant with PCI-Express Specification Revision 1.1
PCI-Express Single-Lane (x1) bus bandwidth 2.5Gbps
Support for DOS, 8 / 7 / Vista / / 2000 / Server 2003-2008 32/64-bit, and other operating systems
Parallel interface (LPT)
I/O address: assigned by BIOS
IRQ: Assigned by BIOS
Support for SPP, PS2, EPP & ECP and mode
Serial interface (RS232)
Compliant with industry standard 16C450/16C550 UART
The chip has a built-in 256-byte FIFO and on-chip H/W, S/W control function.
The data transmission rate of each serial port can 250Kbps (customized data transmission can 1Mbps)
Baud rate: 230.4Kbps
Serial communication parameters Data bits: 5, 6, 7, 8
Stop position: 1, 2
Parity: None, Even, Odd, Space,
control: RTS/CTS, XON/XOFF
I/O address: assigned by BIOS
IRQ: Assigned by BIOS
Serial signal for RS-232: TxD, RxD, RTS, CTS, DTR, , DCD, GND
Package List:
1 x Riser Card
1 x Cover Board
1 x Serial Cable
Note:
Please note that the new type and old type of this product will be sent randomly, and