MOXA NPort 5150A – 1 Port RS-232/422/485 Serial Device Server, 0 to 60°C Operating Temperature

Amazon.com Price: $177.00 (as of 24/06/2022 21:49 PST- Details)

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Only 1 W power consumption / Speedy 3-step web-based configuration
Surge protection for serial, Ethernet, and power lines