产品介绍：
通用PCI总线，2路RS-232通讯卡
Provides 2 RS-232 ports
Built-in COM-Selector
128 KB Software Buffer (max.) for Each COM Port Under Windows
+/-4 kV ESD Protection for i versions
2500 VDC Isolation for i versions
Supports PCI Express, Plug and Play for VEX-112(i)
Supports 3.3 V/5 V PCI bus, Plug and Play
128-byte Hardware FIFO for Each Port
Short Card Design
