SilverStone Technology ECD01 Internal USB 2.0 to Dual RS232 Serial Port Adapter, SST-ECD01

.ECD01 is an internal USB 2.0 (9 pin) to dual-port RS232 interface expansion card. It supports hardware flow control and full-duplex transmission, which provides 5V power through jumper switching, so that additional power supply to the connected serial devices are not needed. ECD01 supports various fields of equipment such as: routers, modems, GPS, barcode machines, label machines, card readers and PDAs.
.Adds two RS232 serial ports to back of the case / rear expansion slot
.Utilizes motherboard's USB 2.0 (9 pin) header
.Allows jumper switching to 5V power supply
.Supports RS232 hardware / software flow control
.1024-byte bi-directional data FIFO buffers for faster data throughput