Wide Application: PCIe combo serial parallel expansion card for Standard Desktops, Servers, POS, PLCs, Factory Control, Automation, Scientific Sensors, Scanners, etc. Combo Expansion: Add 2 high-speed DP9-pin, RS232 serial ports and one DP25-pin parallel port to your PC via the MINI PCI E expansion slot. Slim Bracket: DP25-pin parallel port baffle cable and DP9-pin RS232 serial baffle cable with high and short irons, suitable for 2U chassis, supports Windows and Linux. Number of Interfaces: PCI express to printer LPT port expansion card has 2 DB9-pin RS232 serial ports, 1 DP25-pin parallel port. 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 transfer rate. Item Type: Mini PCIe Combo Serial Parallel Expansion Card Product Material: PCB Number of Interfaces: 2 x DB9-pin RS232 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: Approx. 6gb/s 1 x Mini PCIe Combo Serial Parallel Expansion Card 1 x Print Port Baffle Line 1 x Serial Baffle Cable (RS232) 1 x Screw Customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.