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USB TO 4PT SER ROHS 4PT RS232 SER SIIG's long-term business vision, comprehensive product line, effective marketing strategy and exceptional customer support have made SIIG the leading brand for computer add-on products. High-quality control standards are evident by one of the lowest defective return rates in the industry. PRODUCT FEATURES: Works with USB 1.1 or 2.0 to provide four additional RS232 9-pin serial ports; Works with modems, digital cameras, ISDN terminal adapters, graphics tablets, PDAs, bar code scanners, label printers and other RS232 serial devices; Regulatory approval(s): FCC Class B (DoC); Conforms to USB specification, revision 1.1; Plug & Play; Low power consumption. Draws power directly from USB bus; Built-in 16550 UART with 16-byte FIFO buffers to dramatically increase data transmit/receive speed, especially under Windows multitasking environment; Supports baud rate up to 115 Kbps.