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header-product InLine Null Modem Adapter 31437 with DB9 Male and 9pin Female Connectors Silver
8.99 €

InLine Null Modem Adapter 31437 with DB9 Male and 9pin Female Connectors Silver

InLine Null Modem Adapter 31437 DB9 Male / Female Photo 1
InLine Null Modem Adapter 31437 DB9 Male / Female Photo 2
InLine Null Modem Adapter 31437 DB9 Male / Female Photo 3
InLine Null Modem Adapter 31437 DB9 Male / Female Photo 1
InLine Null Modem Adapter 31437 DB9 Male / Female Photo 2
InLine Null Modem Adapter 31437 DB9 Male / Female Photo 3
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InLine Null Modem Adapter 31437 with DB9 Male and 9pin Female Connectors Silver

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Short description

InLine Null Modem Adapter 31437 features a DB9 male and a 9pin female connector in a durable silver design. This hardware adapter is designed for serial communication setups, data transfer between computers and legacy peripherals, terminal connections, and bridging RS-232 interfaces efficiently.
Available at price 8.99 €: 1351 pcs.
Total available for order: 2695 pcs.
Warranty: 2 Years
SKU: 1092741
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
19.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
22.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.01 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
22.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The InLine Null Modem Adapter 31437 with DB9 Male and 9pin Female Connectors Silver is a specialized hardware component designed for serial communication setups and data transfer between computers and legacy peripherals. Featuring a durable silver design, this adapter allows for direct point-to-point connections without the need for a modem or extensive rewiring by crossing transmit and receive lines.

Advantages

This null modem adapter provides a reliable and tool-free solution for establishing stable serial connections in professional IT environments, on-site deployments, and service use. By utilizing a crossed pinout, it prevents the swapping of transmit and control lines, ensuring defined signal routing. The robust metal housing ensures longevity, while the compact form factor allows users to easily plug it onto existing serial cables to connect a second device quickly and efficiently.

Suitable for

  • Connecting two computers for direct serial data transfer
  • Interfacing legacy peripheral hardware with modern or existing setups
  • Establishing terminal connections in professional IT and engineering environments
  • Bridging RS-232 interfaces without additional modem hardware

When it may not be suitable

This adapter is not designed for connecting devices that require standard straight-through serial cables rather than a crossed null modem pinout. It is also unsuitable for high-speed data transmission applications that rely on modern USB, Ethernet, or HDMI interfaces instead of traditional serial communication.

Key specifications

  • Connector 1: 9-pin female
  • Connector 2: DB9 male
  • Housing material: Metal
  • Product colour: Silver
  • Pinout: Crossed transmit, receive, and control lines

How to use

To use the adapter, simply plug the DB9 male or 9pin female connector directly into your existing serial cable or directly onto the serial port of your computer or legacy peripheral. Ensure that both connected devices are powered off or properly configured for serial communication before establishing the link. Once securely attached, the crossed pinout automatically manages the signal routing for point-to-point data transmission without requiring any software configuration or drivers.

What to consider before purchase

  • Verify that your hardware setup specifically requires a null modem adapter with crossed pinout rather than a standard straight-through serial cable
  • Check the connector genders on your existing devices and cables to ensure compatibility with the DB9 male and 9pin female ports
  • Confirm that the devices you intend to connect support traditional serial communication protocols
Usage recommendations: Always secure the adapter connectors using the integrated thumbscrews to prevent accidental disconnection during data transfer. Store the adapter in a dry environment when not in use to protect the metal housing and internal pins from oxidation.

Specifications

Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Female
Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2: This is the second connector in the device.
DB9
Connector 1: This is the first connector in the device.
9pin female
All features

Technical details

Housing material: What the casing of the product is made of.
Metal

Packaging data

Package volume:
100 cm³
Package weight: Weight of the packaged product.
10 g
Package height: The distance from the top to the bottom of the packaging.
13 mm
Package depth: The distance from the front to the back of the packaging.
32 mm
Package width: The distance from one side of the packaging to the other.
18 mm

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.01 kg

Features

Product colour: The colour e.g. red, blue, green, black, white.
Silver
Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Female
Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2: This is the second connector in the device.
DB9
Connector 1: This is the first connector in the device.
9pin female

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Stock data
Warehouse Stock Delivery to the store Store Price
WH357 1351 19.10.2026 Best delivery
8.99 € Best price
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 1344 02.11.2026
15.49 €
8.99 €
Stock: 1351
Delivery Date: 19.10.2026 Best delivery
Warehouse: WH357
Available only for legal entities
15.49 €
Stock: 1344
Delivery Date: 02.11.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the InLine Null Modem Adapter 31437 DB9 Male / Female cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2695 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 19.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All InLine products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized InLine service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 2 gender, connector 1 gender, connector 2, connector 1, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for InLine Null Modem Adapter 31437 DB9 Male / Female?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.