Stable and reliable chipset WCH CH382L.Standard -232 DB9 male serial port compliant. Standard IEEE 1284-1994 DB25 female parallel port compliant. Supports 2.5Gbps PCI-E bus with full duplex channel. 1 external -232 DB9 serial port & 1 external DB25 parallel port available. : 98 / Me / NT4.0 / 2000 / XP / Vista / Win7 / Win8 / Server 2003 / Server 2008 / Linux. Color:green Material:metal + PC Package Contents: 1*PCI-E PCIe Expansion Card Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.