Features: 1.Wide Application: PCIe combo serial parallel expansion card for Standard Desktop, Server, POS, PLC, Factory Control, Automation, Scientific Sensor, Scanner,etc. 2.Combo Expansion: Add 2 high speed DP9 pin, RS 232 serial ports and a DP25 pin parallel port to your PC via the MINI PCI E expansion slot. 3.Slim Bracket: DP25 pin parallel port baffle cable and DP9 pin RS 232 serial baffle cable with tall and short irons, suitable for 2U chassis, support for Windows and for Linux. 4.Number of Interfaces: PCI express to printer LPT port expansion card has 2 DB9 pin RS 232 serial ports, 1 DP25 pin parallel port. 5.Thickened Gold Plated Pin: Serial PCIe card adapter adopts immersion gold process, which has good conductivity and anti oxidation, ensuring good contact and improving data transmission rate. specification:Item Type: Mini PCIe Combo Serial Parallel Expansion Card Product Material: PCB Number of Interfaces: 2 x DB9 Pin RS 232 Serial Port, 1 x DP25 Pin Parallel Port Applicable Slot: Mini Pci E (not for MSATA or Mini Pci E Wireless Internet Card Slot) Bus Bandwidth: About 6gb/s PackageList:1 xMiniPCIeComboSerialParallelExpansionCard 1 x Print Port Baffle Line 1 x Serial Baffle Cable (RS232) 1 x Screw