Startech PEX2S553LP, Bus PCI Express, Port-2, FIFO 128 Bytes, Max Baud Rate 460.8 Kbps, Connector 1 - PCI Express x1 Male, External Ports 2 - DB-9 (9 pin, D-Sub) Male, Internal 1 - LP4 (4 pin; Large Drive Power) Male, Included 1 - PCI-Express Serial Card, 1 - DB9 Ribbon cable, 1 - Full Profile Bracket, 1 - Low profile bracket, 1 - Driver CD, 1 - Instruction Manual. The PEX2S553LP low profile/half-height PCI Express Serial Card turns a PCI Express slot into two RS232 (DB9) serial connections. The card is constructed using a native single chip design that lets you harness the full capability offered by