Industrial Serial Server RS232/485 To WiFi Ethernet, Modbus MQTT POE

Industrial Serial Server RS232/485 To WiFi Ethernet, Modbus MQTT POE

Marsoni

M251S

$89.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Industrial Serial Server RS232/485 To WiFi Ethernet, Modbus MQTT POEIndustrial Serial Server RS232 485 To WiFi Ethernet, Modbus MQTT POE Industrial Grade Serial Server RS232 485 To WiFi And Ethernet, Modbus Gateway, MQTT Gateway, Metal Case Features: This is an RS232 485 device data acquisitor IoT gateway designed for the industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, serial port to HTTPD Client, etc. With RS232, RS485, WIFI and Ethernet interfaces,

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I have owned this hub for almost a year and I has been super solid. The best part is the thunderbolt cable that connects it to your computer is removable and replaceable. It has a nice long cable, but if it is too short just buy a longer Thunderbolt cable. Via a single Thunderbolt connection I have my Surface Pro 11 connected to duel 32" monitors, ethernet, power, external storage, and a keyboard/mouse dongle. I would highly recommend. Anker is my go to for this kind of product.

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Reviewed in the United States on March 13, 2026

Verified Purchase

scott

Fort Morgan, US

★★★★★ 1

Monitor and Power stopped working.

Worked for a couple months then the monitor would go out. Consistently after laptop went to sleep. Would have to unplug the hub and then plug in again to to get working. Then the power thru stopped working. Very disappointing.

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Reviewed in the United States on September 29, 2025

Verified Purchase

K K

Bozeman, US

★★★★★ 3

Warranty issue

Caution when punching Anker products. If it is not direct from Amazon they will not warranty it.

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Reviewed in the United States on June 10, 2026

Verified Purchase

YuQin Ma

Bozeman, US

★★★★★ 5

Anker never disappoints

I've been using this for the past 3 days, and I have to say it's way better than my previous 10-port USB-C hub, which had stopped working. I like the design of this new hub, where the HDMI, PD, and Ethernet ports are all in the same area and located at the back. In comparison, my previous hub had its ports scattered all over the place. This hub only gets lightly warm, whereas my previous one used to get super hot, which I think might have contributed to its failure. I appreciate the fact that it has a power light to indicate when it's on. It's also more compact, which I like. I've had no issues with my other Anker devices, and so far I'm really liking this hub.

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Reviewed in the United States on August 30, 2024

Verified Purchase

RBCrissVG

Los Angeles, US

★★★★★ 5

Works great

Style: 5-in-1 Display Hub

Very nice.

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Reviewed in the United States on June 2, 2026