8 Port RS422/485 USB to Serial Adapter - US-842 - Brainboxes

8 Port RS-422/485 USB to Serial Server
Data rate from 300 to 921,600 baud
High Retention USB Socket, IP30 Rated Case
Drivers for all popular operating systems including Windows 8
Screw Lock Power Supply (included)
Lifetime Warranty and Support
US-842-datasheet (0.91 MB)

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Description

USB to Serial Server providing 8 RS422/485 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 384 byte receive FIFOS, coupled with 1Mbit line drivers deliver uncompromising performance on your laptop/PC.

Drivers for Windows 32 bit and 64 bit Operating Systems including Windows XP, Server 2003, Vista, Server 2008, Windows 7 and Windows 8 with additional drivers for both Mac OS X and Linux.

* Please note Brainboxes USB to Serial RS422/485 products have a known issue when used in Windows 10 and attempting to configure to be used in half duplex mode. This mode is currently unavailable in Windows 10.

Customer Feedback

THANK YOU SO MUCH for your brilliant product (US-101)!! ...

We tried [many other brands] and a few other USB to serial adapters. None of them worked!.. I’ve been buying and returning like crazy. ...

I finally called IBM/Lenovo out of desperation and somewhere in their internal knowledgebase was a mention of your product working. So I bought one from Buy.com as a test.. it arrived today. IT WORKS! =)

You are likely the only manufacturer on the planet that makes a working serial to USB adapter for IBM/Lenovo. I would sugges
Creative NetVentures, Inc.

I would like to thank you for sending out the windows 7 RS232 USB driver.
I have had a lot of problems trying to get my EXFO fiber optic test equipment to communicate with my windows 7 laptop.
I loaded on your software for the driver and within 10 mins I could communicate with the EXFO.
Exfo's technical guys have struggled to find a soloution. Thanks to Brainbox the problem is solved
Many thanks
ABM Electrical Contracting Ltd

For some time I have been searching for a USB to Serial adaptor that works correctly with the Fanuc CNC controls fitted on the 600 UK products that I support.
I now use and recommend a USB to Serial adaptor supplied by Brainboxes Limited
They can look after all your RS232 hardware needs, be it getting your Netbook to talk to your CNC or your Desktop serving your CNC machines via RS232 multi port cards.
I find their products very reliable and their support team are very helpful.
Les Robbins

After searching a lot on the internet for a good USB to Serial (RS232), I elected the Brainboxes US-101 for the following reasons:

it really seemed to be a very good device and completely suited for my needs (size, features, technical data) - very good ratings all over the internet

ready and tested for Windows 7 (64 bits)

developed and made in Europe from an european company!

lifetime guarantee

lifetime support

Brainboxes seems to be a company really [focused] on having good and reliable products and respect its customers
Luis Goncalves

We have been massively impressed by the Brainboxes USB to RS232 converter. It is the best adapter we have found as it fully supports all 9 pins and has compatible drivers for windows 2000 through to Windows 7 64 bit meaning one solution can be used with all of our machines. We have been able to communicate with legacy PLCs such as the Honeywell IPC range through to modern PLCs such as the Allen Bradley Control Logix range. Unlike many other converters that can be hit-and-miss we are yet to find a device your converter will not work with. We have recommended your product to all of the automa
Coca Cola Enterprises

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Operating Systems

Tech Spec

Serial Port
Ports	8
Protocol	RS422/485
Connector	DB9 Connector - 9 Pin Male
Tx FIFO Size	128
Rx FIFO Size	384
Operating Distance	RS422/485 Standard (4000 ft : 1200 metres)
Cable	USB cable Type A to B (1 metre ~ 3ft)
Serial Port Settings
Max Baud Rate	921,600
Data Bits	7 or 8
Parity	Odd, Even, None, Mark or Space
Stop Bits	1 or 2
Flow Control	RTS/CTS, DSR/DTR, XON/XOFF
Tx/Rx Modes	Point to Point
Power
Power Input	5V DC input
Power Supply 1 Description	Global Power Supply - AU, EU, UK, US - PW-500
Power Supply 2 Description
General
Mounting Accessories 1 Description	Wall Mounting kit for 4&8 ports - MK-059
Mounting Accessories 2 Description	Snap In DIN Clip kit for 4&8 ports - MK-070
PCB Layers	4
Device Dims with ears	96.3x101x25
Device Dims without ears	91.6x77x25
Industrial Standard	Yes
Power Consumption	1A@5V
Product Weight	0.881 kg, 31.08 ounces
Product Dimensions	215x123x56 mm, 8.5x4.8x2.2 inches
Packaged Weight	1.206 kg, 42.54 ounces
Packaged Dimensions	300x135x80 mm, 11.8x5.3x3.1 inches
GTIN (barcode)	837324001907
Operating System Compatibility
Operating Systems	Microsoft Windows 10 Microsoft Windows 8 32 bit & 64 bit Editions Microsoft Windows 7 32 bit & 64 bit Editions Windows Server 2008 32 bit & 64 bit Editions Windows Vista 32 bit & 64 bit Editions Mac OS X Windows XP 32 bit & 64 bit Editions Linux
Interface
USB 2.0	480 Mb/s USB 2.0 data rates.

Approvals

Microsoft Signed Drivers

Microsoft Hardware

Other

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Ports 8 Protocol RS422/485 Max Baud Rate 921,600 Industrial Standard Yes	Ports 4 Protocol RS422/485 Max Baud Rate 921,600 Industrial Standard Yes	Ports 8 Protocol RS232 Max Baud Rate 921,600 Industrial Standard Yes	Ports 4 Protocol RS232 Max Baud Rate 921,600 Industrial Standard Yes	Ports 2 Protocol RS422/485 Max Baud Rate 921,600 Industrial Standard Yes

£ 325.00 (gbp)	£ 206.00 (gbp)	£ 260.00 (gbp)	£ 152.00 (gbp)	£ 142.00 (gbp)
	Details	Details	Details	Details

8 Port RS422/485 USB to Serial Adapter US-842

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