TXB071 4-Port PCI Express Expansion Card: RS232 DB9 Multi-Port Serial Expansion Adapter.

Features: Compatible with RS232, RS485, and RS422 modes. Bidirectional data rates from 50 bps to 16 Mbps per port. Full serial modem control. Supports hardware and software flow control. Supports 5, 6, 7, 8, and 9-bit serial formats. Specifications: Model Number: TXB071. Chipset: ASIX/MCS9900. Number of Ports: 4. Material: PCB. Package Dimensions: Approx. 120 mm. Color: See pictures. Quantity: 1 piece. Note: Please allow 0-1 cm error due to manual measurement. Please make sure you do not mind before you bid. Due to differences in monitors, the actual color of the item may differ slightly from the color shown. Package Contents: 1 x PCI ExpressCard