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SerialGear? USB 2.0 to Serial High-Speed RS-232 Industrial Adapter Metal case with DIN-Rail

Adds one industrial RS-232 serial port by connecting to a USB port
Full RS-232 modem control signals and hardwaresoftware flow control
LEDs of Power TxD and RxD for easy port monitoring and diagnostics
Powered by USB port no external power adapter required
128 byte transmit FIFO 384 byte receive FIFO