1x Parallel 2x Serial Express Card Compliant with PCI Express Specification Rev 1.1 Parallel Port - Compliant with IEEE 1284 standard; Supports ECP/EPP/SPP; Supports Bi-Directional data transmission of speed up to 2MByte/s Serial Port - Compatible with 16C550/16C552/16C554 and 16C750 UART; Supports 256-byte FIFO buffer; Supports 5-6-7-8-bit serial format; Data transfer rate up to 115Kbps on each port Standard and Low Profile Bracket Included Supported OS: Windows 98SE / ME / XP / Vista / 7 / 8 / 8.1 / 10; Windows Server 2000 / 2003 / 2008 / 2016; DOS; Linux