PCI-E to 4-port R232 expansion card     Gold finger thickened gold plating design, scratch and wear resistant, more firm contact and more stable transmission     The powerful chip adopts aszx AsiaInfo master control, with high-speed and stable transmission     Supporting 4-port RS-232 serial port cable, it can connect a variety of serial port devices, such as PC, terminal, modem, printer, scanner, etc. the data rate of each port can reach 115200kbps     Pce4sop-a01 is a universal-purpose PCE serial port card, which is designed for POS, ATM and other applications. It can be used for industrial automation system manufacturing and system integration. Pceasop. - A01 provides four RS232 serial ports, which can connect a variety of serial port devices, such as PC, terminal, modem, printer, scanner, etc.          Model: pec4s0p-a01     Interface: pce-e 1x (compatible with 1X, 4x, 8x, 16x)     Main control chip: Asix ax99100     Output interface: DB25 to 4 ports DB9 R232     2U small chassis: support, with half height baffle     Working environment: - 30-70 & 8451;     System support: WinXP win7 win8 win10 Linux     Single-lane (X1) PCI Express End-point Controller with PHY integrated     Compliant with PCI Express 2.0 Gen 1     Compliant with PCI Express card specifications     Compliant with PCI Power Management 1.2     Supports four PCI Express functions     Supports both legacy and MSI Interrupt     Supports ASPM Power Management     Serial Port Interface     Dual or Quad UARTs     Bi-directional speeds up to 25 Mbps per port     Full Serial Modem Control     Supports Hardware, Software Flow Control     Supports 5, 6, 7, 8 and 9-bit Serial format     Supports Even, Odd, None, Space and Mark parity     Supports Custom baud rate by internal PLL or external clock     Supports On Chip 256 Byte depth FIFOs in Transmit, Receive path of each Serial Port     Supports remote wakeup and power management features     Serial Port transceiver shutdown support     Supports multi-drop application for 9-bit mode     Supports DMA burst transfer     colour: black     Material: metal     Size: 12.5x10.5x2.5CM          Package Contents:     1 x R232 expansion card     1 x Drive CD     1 x DB25 to 4 DB9 data cables          Only the above package content, other products are not included.     Note: Light shooting 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.