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DB9 null modem male to female slimline data transfer serial port adapter 2 Pack

Brand: Arnorin

4.7 902 ratings

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$8.29 $4.15 per Count

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Bundles with this item

DB9 null modem adapter kit

-7% $22.99

List: $24.87

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Purchase options and add-ons

Compatible Devices	Modem
Color	2 Pack
Item dimensions L x W x H	1.3 x 0.5 x 0.07 inches
Brand	Arnorin
Number of Ports	2

About this item

Converts standard, straight wired cables to null modem wiring
Null modem configuration with pin 9 open.
Slimline design reduces leverage strain on computer ports
UL grade 94V-0 connector insulator satisfies flammability requirements
Screws are removable and reversible

› See more product details

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DB9 null modem male to female slimline data transfer serial port adapter 2 Pack

4.7 902

$8.29 ($4.15/Count)

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Sold by ArnorinDirect and ships from Amazon Fulfillment.

Arnorin DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter 10 Pack

4 stars and above

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	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment
Price	$8.29	$9.99	$9.99	$7.99	$17.59	$8.98
Delivery	Get it as soon as Sunday, Oct 6	Get it as soon as Monday, Oct 7	Get it as soon as Sunday, Oct 6	Get it as soon as Sunday, Oct 6	Get it as soon as Sunday, Oct 6	Get it as soon as Sunday, Oct 6
Customer Ratings	4.7902	5.01	4.2225	4.7315	4.5159	4.174
Sold By	ArnorinDirect	Copapa	Vtop Online Shop	Warmstor	ArnorinDirect	DTECH Co.,Ltd
connector type	—	—	D-Sub 9	RS232 DB9	Mini USB, USB Type B	DB9
number of ports	2	1	2	1	10	1
input voltage	94 volts	94 volts	—	—	94 volts	100 volts of alternating current

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Product Description

Convert your existing straight wired cables to null modem or reverser (transmit & receive) cables with these handy, inexpensive adapters.
Simply plug these adapters onto the end of a cable and you're done !

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Customer reviews

902 global ratings

How customer reviews and ratings work

Customers say

Customers like the performance, build quality, and value of the electronic adapter. They mention it works well, serves its purpose, and is easy to install.

AI-generated from the text of customer reviews

Select to learn more

Works well Build quality Value for money Ease of installation Removable screws

32 customers mention "Works well"32 positive0 negative

Customers are satisfied with the adapter. They mention it works well, is well-made, and serves its purpose. Some say the adapters work instantly and are solidly made.

"If you need one, you know what it does. It works well, and was priced good" Read more

"good price and works good" Read more

"Easy install, Works great." Read more

"...They still worked great for other stuff. Overall quite pleased" Read more

15 customers mention "Build quality"15 positive0 negative

Customers are satisfied with the build quality of the adapter. They mention it's a good product with solid connectors.

"...Seem to be well-made." Read more

"...Took a minute to install and the system took off, as expected. A well made part." Read more

"I like the quality construction of the DB9 null modem m to f adapter, This adapter is quality construction...." Read more

"...They do the job well, and are quality made. I did find that the posts were on backwards, and were a little long for proper use on my PC port...." Read more

8 customers mention "Value for money"8 positive0 negative

Customers appreciate the value of the adapter. They mention it works well and is priced reasonably.

"If you need one, you know what it does. It works well, and was priced good" Read more

"good price and works good" Read more

"Good value for the money. If you are working in the Serial Communications domain, you need adapters to get the job done...." Read more

"good value good size to do job needed" Read more

7 customers mention "Ease of installation"7 positive0 negative

Customers find the electronic adapter easy to install. They mention it's simple and works great.

"Easy install, Works great." Read more

"...Perfect! Arrived next day. Took a minute to install and the system took off, as expected. A well made part." Read more

"...Sturdy and was easy to install" Read more

"They were easy to use . I used them to extend a wire ." Read more

3 customers mention "Removable screws"3 positive0 negative

Customers appreciate the removable screws of the adapter. They say it's good as they have had issues with interference.

"...One thing I did appreciate... the little screw studs can be easily removed...." Read more

"...Happily they are both removable and reversible." Read more

"the screws are removable which is good as I have had issues with interference with existing screws in the past." Read more

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Top reviews from the United States

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Bert Bee

Works as it should

Reviewed in the United States on March 2, 2024

Size: 2 PackVerified Purchase

If you need one, you know what it does. It works well, and was priced good

Helpful

William

good price and works good

Reviewed in the United States on January 16, 2024

Size: 2 PackVerified Purchase

good price and works good

Helpful

Ricky

Need this in my toolbox.

Reviewed in the United States on September 9, 2023

Size: 2 PackVerified Purchase

I have some hardware I will need to interface with. Not sure the gender of the DB-9 connectors or if it's a pass-through or NULL modem. These adapters should allow me to get things up and running regardless of the configuration. Seem to be well-made.

Helpful

Ian Kapoosian

Works as advertised

Reviewed in the United States on January 31, 2024

Size: 2 PackVerified Purchase

Like that they came as a 2 pack, as I always need more than 1. Product works as advertised.

Helpful

Tim

DB9 null modem male to female

Reviewed in the United States on August 12, 2024

Size: 2 PackVerified Purchase

These did what they are meant to do. What else can I say. Fast sipping and packaged well.

Helpful

Christopher M Francis

Small

Reviewed in the United States on July 12, 2024

Size: 2 PackVerified Purchase

Does the job.

Helpful

widget

Null modem adapter

Reviewed in the United States on November 8, 2023

Size: 2 PackVerified Purchase

Easy install, Works great.

Helpful

John B

Had No Idea

Reviewed in the United States on December 22, 2023

Size: 2 PackVerified Purchase

Having been born in 94, I had never heard of null modem communication. Suddenly, the place I work for needs to start testing RF cables. They bought me an older piece of equipment that can be interfaced with via an "RS232" appearing port. Grabbed my trusty usb to serial cable. Couldn't get anything. Took a week of emails back a forth with the OEM to figure out I need a "null modem cable" to plug my cable into first. ANYWAYYY, this fixed everything after having to run software on a virtual box. I assume that means this works perfectly for whatever it is this adapter is for. 11/10 still have no idea what null modem communication is but I'm impressed.

2 people found this helpful

Helpful

Top reviews from other countries

Francisco Packo

the solution for my problem

Reviewed in Canada on November 8, 2023

Size: 2 PackVerified Purchase

I ended up buying these adapters to correct a driver problem on my laptop, it sounds strange but that's how it happened, I read in a forum that someone had the same problem as me, the PC did not recognize the RS232 cable and the solution was to buy this adapter just so corrected the problem.

I See Dead People

It works.

Reviewed in Canada on August 1, 2021

Size: 2 PackVerified Purchase

Pretty straightforward adapter that works. Just ensure that you confirm whether you need “Straight” or “Dull Modem” which reverses the wiring.

Make sure you order the correct adapters! Good product

Reviewed in Canada on May 13, 2019

Size: 2 PackVerified Purchase

Ordered the wrong adapters, my fault, got caught by terminology. I ordered M/F I needed F/F. Sent in another order. I am happy to add to my toolbox, I do a lot of serial device connectivity. Good solid product, for a simple device.

Brian McNally

they work

Reviewed in Canada on March 2, 2020

Size: 2 PackVerified Purchase

work and were less money than local

John S

Small

Reviewed in Canada on November 15, 2019

Size: 2 PackVerified Purchase

Nice and small made well.

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