Description:This USB 2.0 to serial adapter enables you to connect up to four different serial devices to a free USB port.Specification:• MosChip chipset • 4 x RS232 serial interface with DB9 connector • Connector with screw nuts • Data transfer rate up to 921.6 Kb/s • LED indicator • Automatic IRQ and I/O address selection • Four 16C450 / 16C550 compatible UARTs • Supports FIFO 512 bytes per port (transmit / receive)System requirements:• Windows 2000/XP/Server-2003/Vista/Vista-64/7/7-64/8/8-64 • PC or notebook with a USB portPackage content:• USB 2.0 to serial adapter • USB 2.0 cable • Driver CD • User manual