---
product_id: 187359446
title: "DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack"
brand: "arnorin"
price: "฿1975"
currency: THB
in_stock: false
reviews_count: 5
category: "Arnorin"
url: https://www.desertcart.co.th/products/187359446-db9-null-modem-male-to-female-slimline-data-transfer-serial
store_origin: TH
region: Thailand
---

# DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack

**Brand:** arnorin
**Price:** ฿1975
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack by arnorin
- **How much does it cost?** ฿1975 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/187359446-db9-null-modem-male-to-female-slimline-data-transfer-serial)

## Best For

- arnorin enthusiasts

## Why This Product

- Trusted arnorin brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## 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 The low profile design reduces leverage strain on overstressed computer ports and is fully shielded for electrically noisy environments.

Review: As described.
Review: Llegó en tiempo y forma

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075XHWVSJ |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #756,342 in Electronics ( See Top 100 in Electronics ) #558 in Serial Adapters |
| Brand | Arnorin |
| Customer Reviews | 4.7 4.7 out of 5 stars (945) |
| Date First Available | 29 October 2017 |
| Does it contain liquid? | No |
| Item Dimensions LxWxH | 33 x 13 x 2 Millimeters |
| Item Weight | 20 g |
| Item model number | KAD9D90001-S-2 |
| Model | KAD9D90001-S-2 |
| Net Quantity | 2.0 Count |
| Number of Ports | 2 |
| Product Dimensions | 3.3 x 1.27 x 0.18 cm; 20 g |

## Product Details

- **Brand:** Arnorin
- **Connector Type:** USB Type C
- **Finish Type:** Matte
- **Item dimensions L x W x H:** 33 x 13 x 2 Millimeters
- **Number of Ports:** 2

## Images

![DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack - Image 1](https://m.media-amazon.com/images/I/41FGgCTOeML.jpg)
![DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack - Image 2](https://m.media-amazon.com/images/I/41K4Ya1K2GL.jpg)
![DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack - Image 3](https://m.media-amazon.com/images/I/41PcM19IpvL.jpg)
![DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack - Image 4](https://m.media-amazon.com/images/I/41fmFStcokL.jpg)
![DB9 Null Modem Male to Female Slimline Data Transfer Serial Port Adapter 2 Pack - Image 5](https://m.media-amazon.com/images/I/51FwpT4q21L.jpg)

## Questions & Answers

**Q: What i think i am seeing in the picture is two different converters.  is one a straight through gender changer & the other a null modem configuration?**
A: Both of them are standard null modem adapters

**Q: Will these pass sound so that I may plug in my Bose speakers?**
A: not sure your application, this is an RS232 signal swap adapter.
Here is pinout: pin-1 goes to pin-4, 
pin-2 to pin-3, 
pin-5 to pin-5, 
pin-7 to pin-8, and 
pins-6&9 are not connected.

**Q: do I have to use two connectors on each cable?**
A: No on one on each cable

**Q: Hi, are both of these the exact same? If not what is the difference?**
A: I ordered a 2 pack for work and they are the same.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***U on 26 January 2026*

As described.

### ⭐⭐⭐⭐⭐ Review
*by F***O on 10 April 2025*

Llegó en tiempo y forma

### ⭐⭐⭐⭐⭐ Review
*by N***T on 20 January 2026*

Amazon were the only market place to sell these null modem adapters at a great price. Quality item and an essential for older/retro computers and serial devices. Two of them are included in the package.

## Frequently Bought Together

- DB9 null modem male to female slimline data transfer serial port adapter 2 Pack
- Arnorin DB9 Null Modem Female to Female Slimline Data Transfer Serial Port Adapter 2 Pack
- Arnorin DB9 Null Modem Adapter Male to Male Slimline Data Transfer Serial Port Adapter 2 Pack

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**Shop now:** [https://www.desertcart.co.th/products/187359446-db9-null-modem-male-to-female-slimline-data-transfer-serial](https://www.desertcart.co.th/products/187359446-db9-null-modem-male-to-female-slimline-data-transfer-serial)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-02*