The 1m USB null modem adapter adds a serial RS-232 DB/DE-9 (female) connector to a desktop or laptop computer via a USB type A connector. Attach the adapter to a serial device using the preinstalled removable, slotted D-Sub thumbscrews or install the supplied DB-9 nuts to ensure compatibility with other serial devices or cables. The adapter's data transfer and data reception LED indicators allow you to monitor connection activity in real time. The USB LED indicates whether the adapter has been successfully connected to the desktop or laptop computer. All LEDs help diagnose and troubleshoot problems. It is compatible with Windows, MacOS, ChromeOS and Linux. The drivers for Windows 7 and later versions, MacOS 10.15 and later and Linux are installed automatically. The USB to RS-232 Adapter has a COM retention feature that automatically reallocates the COM port value when the cable is disconnected and reconnected, or when the system is rebooted. The robust TPE construction and ESD protection of level 4 (15 kV air and 8 kV contact) increase the reliability and durability of the USB serial adapter. The copper shielding minimizes electromagnetic and high-frequency interference (EMI and RFI). Gold-plated connectors improve the signal conductivity.
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