货品说:通用版PCI串口通信2路丢开RS-232无线通讯卡Provides 2 RS-232 portsBuilt-in COM-Selector128 KB Software Buffer (max.) for Each COM Port Under Windows+/-4 kV ESD Protection for i versions2500 VDC Isolation for i versionsSupports PCI Express, Plug and Play for VEX-112(i)Supports 3.3 V/5 V PCI bus, Plug and Play128-byte Hardware FIFO for Each PortShort Card Design