型号: IC1025A 产品描述:USB Hub, 8-Port, RS-232/RS-422/RS-485 Further Details: Support USB version 1.1. Powered by the USB bus. Data rates up to 460.8 kbps for RS-232 and 921 kbps for RS-422/RS-485. No I/O ports or IRQs required. Windows? 98/Me/XP and Windows 2000 compatible.