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

Product ID: 270711197

Details

Color
Black
Compatible Devices
Laptops Mouse
Connector Type
5-Pin Terminal
Item dimensions L x W x H
2.5 x 1.44 x
Specific Uses For Product
Connecting to

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Description

GearmoGearMo Mini USB to RS485 / RS422 Converter FTDI CHIP with Screw Terminals and Windows 10 Support

Specifications

ASIN	B005CPI0JQ
Best Sellers Rank	#86 in Serial Adapters
Brand	Gearmo
Color	Black
Compatible Devices	Laptops, Desktops, Mouse, Printers, Tablets, etc.
Connector Type	5-Pin Terminal Block, USB Type A
Customer Reviews	4.7 4.7 out of 5 stars (174)
External Testing Certification	Não aplicável
Finish	Matte
Global Trade Identification Number	00729440692391
Input Voltage	5 Volts (DC)
Item Dimensions	2.5 x 1.44 x 0.5 inches
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
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Connecting legacy serial devices to modern USB host systems
UPC	729440692391
Unit Count	1.0 Count
Warranty Type	1 Year

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

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