There is usually a 120 ohm resistor in RS-485 connections. Does this adapter incorporate that 120 ohms internally or do I still need the resistor?

Termination is only required when both length of line and baud rate affect propagation delay. I've used this adapter without a problem with a few different components with lengths way under 1000ft and never needed a termination resistor. You may have to double check line length and baud rate to verify propagation delay in nanosec to confirm whether you'll need a terminator. I hope this helps.

is that really a Mini USB? it looks like a Male B USB connector.

It is a Full Size Male USB Connector, not Mini USB. It works really good... and I find it surprising it says Mini; I don't remember it saying that back when I bought it. I hope this helps.

Is there any visual indicators that it is "working"? i.e. transmit, receive, power, etc. LEDs?

In the instruction sheet that is shown it says:"Power indicator light and data traffic indicator light are also available with the converter for malfunction indication"There are PWR, RXD and TXD labeled LEDs on the module just above the terminal block.

Is this unit plug and play with Windows 10?

Yes, it fully supports Windows 10.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Gearmo® Mini USB to RS485 / RS422 Converter FTDI CHIP with Screw Terminals

Product ID: 270711197

Details

Colour
Black
Compatible devices
Laptops Mouse
Connector type
USB Type A
Item dimensions L x W x H
6.4 x 3.7 x
Specific uses for product
personal

⚡Surge protection up to 2500 Vrms/600W

💻Plug & play USB 2.0 with virtual COM port

🔄Bi-directional RS485/RS422 data flow

¥11626

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Description

🔌 Connect smarter, not harder — the ultimate USB to RS485/422 converter for pros on the move!

SPEED MEETS DISTANCE - Supports baud rates up to 921.6Kbps and communication distances up to 9800 feet—connect like a pro.
PLUG PLAY POWERHOUSE - USB-powered with automatic virtual COM port creation—no external power or complex setup needed.
UNIVERSAL COMPATIBILITY - Works flawlessly across Windows, Mac, and Linux, making integration into your workflow effortless.
ROCK SOLID SURGE DEFENSE - Safeguard your gear with 2500 Vrms/600W electrical protection—no more fried circuits!
SEAMLESS BI DIRECTIONAL COMMUNICATION - Effortlessly convert USB signals to RS485/RS422 with full duplex and half duplex support.

The Gearmo® Mini USB to RS485/RS422 Converter features a high-performance FTDI FT232RL chip enabling reliable, bi-directional data conversion with automatic send control. It offers robust surge protection up to 2500 Vrms/600W, supports baud rates from 300bps to 921.6Kbps, and can communicate over distances up to 9800 feet. USB-powered and compatible with Windows, Mac, and Linux, it creates a virtual COM port for seamless integration without external power or complex setup.

Specifications

ASIN	B005CPI0JQ
Brand	Gearmo
Color	Black
Compatible Devices	Laptops, Desktops, Mouse, Printers, Tablets, etc.
Connector Type	USB Type A
Current Rating	1 Amps
Customer Reviews	4.7 4.7 out of 5 stars (167)
External Testing Certification	Não aplicável
Finish	Matte
Global Trade Identification Number	00729440692391
Input Voltage	5 Volts (DC)
Item Dimensions	6.4 x 3.7 x 1.3 centimeters
Item Weight	1 Ounces
Manufacturer	Gearmo
Mfr Part Number	USA-482422
Model Number	USA-482422
Number of Items	1
Number of Ports	2
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	personal
UPC	729440692391
Unit Count	1 Count
Warranty Type	Limited

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¥11626

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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