Description: USB 2.0 to 4-way 232 serial converter, 4 COM ports work independently and at the same time Input: USB Type-B Female Output: DB9P male*4 Power Supply: DC 5V (Powered by USB) Automatically assign IRQ and I/O addresses No switch, no jumper, easy to set using software 32-bit bus design supporting PCI 2.1 specification High speed I/O controller Built-in SPP, PS2, EPP, ECP Support: Windows 95/98/98SE/Me/2000/XP/vista/Win7/Linux OS/DOS application: POS system Automatic ticketing system Medical equipment Financial to Public Savings System Railway real-time station reporting system and other serial equipment control systems Package Includes: 1x Adapter Card 1x USB Cable 1x CD
