Product Features.The serial port can realize the power supply of pins 1 and 9 Support special baud rate Industrial temperature range: -40 to 85C power chip, can achieve 5v or 12v power supply without external power supply. The computer host suitable for PCI-E slot can provide 4 standard DB9-pin RS232 serial ports, and the bidirectional speed of full serial modem control of each port is up to 25Mbps, which supports remote and power management functions. Material:PCB Colour:Black PCI Express: Single- (X1) PCIExpress endpoint control with PHY integration Compliant with PCI Express 2.0 Compliant with PCI Express Card Specifications Compliant with PCI Power Management 1.2 Supports both legacy and interrupts Support ASPM power management Equipped with short iron pieces, supports 2U chassis. serial port Dual UART or UART Supports -232 full serial modem control bi-directional speeds up to 25Mbps per port Supports hardware and software flow control Supports 5, 6, 7, 8, 9 bit serial formats Support serial communication verification mode: even, odd, none, 0, 1 Supports on-chip 256- for transmit and receive on each serial port path Supports remote and power management functions Support serial port transceiver shutdown All serial ports support slow IrDA mode (up to 115200bps) Support 9-bit mode multi-point application Provide -232 serial port 5v or 12v DC power output through COM pin 1 or 9 Support DMA burst transfer Operating temperature range: 0 to 70C or -40 to 85C Support special baud rate Applications Serial Connected Devices Serial Network or Monitoring Devices Data Acquisition Systems Terminals and Industrial PCs Add-in Cards for Serial I or O or USB 1 or 0 Expansion for Embedded Systems System Requirements Windows XP or 2003 Server or Vista or 7 or 8.x or 10 Linux 2.6.15and later Android 1.x or 2.x or 3.x or 4.x or 5.x Package Contents: 1 x Expansion Card Only the above package content, other products are not included. Note: Light reflection 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.