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header-product StarTech.com Serial Null Modem Cable 3 m Cross Wired DB9 Female to DB25 Male Grey
16.49 €
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AiO.lv Computer Components Cables and adapters Serial & Parallel Cables StarTech

StarTech.com Serial Null Modem Cable 3 m Cross Wired DB9 Female to DB25 Male Grey

StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 1
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 2
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 3
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 1
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 2
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 3
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 1
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 2
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 3
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 1
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 2
StarTech.com DB9 to DB25 Null Modem Cable 3 m Photo 3
StarTech.com Serial Null Modem Cable 3 m Cross Wired DB9 Female to DB25 Male Grey
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StarTech.com Serial Null Modem Cable 3 m Cross Wired DB9 Female to DB25 Male Grey

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Offer for legal entity, cashless payment. Why is an item available only for a legal entity?
This is due to long delivery times and limited product warranties.

Short description

StarTech.com 3 meter cross-wired serial null modem cable designed for connecting serial devices, featuring a DB9 female connector on one end and a DB25 male connector on the other. This grey data cable enables reliable communication between computers and legacy peripherals. Built to meet CE and RoHS compliance standards, it ensures secure data transfer for professional and industrial setups.
Available for order: 6 pcs.
Warranty: 2 Years
SKU: 632590
Manufacturer: StarTech
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free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
09.11.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
12.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.18 kg)
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Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
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Product information

Description

The StarTech.com Serial Null Modem Cable 3 m Cross Wired DB9 Female to DB25 Male Grey is a specialized data cable designed to connect serial devices and transfer files efficiently. Featuring a DB9 female connector on one end and a DB25 male connector on the other, this 3-meter grey cable enables reliable communication between computers and legacy peripherals in professional and industrial environments. Built with quality materials and compliant with CE and RoHS standards, it ensures secure data transfer and dependable performance.

Advantages

This serial null modem cable provides a stable and secure connection for older hardware, making it an essential tool for maintaining legacy systems. The molded connectors offer effective strain relief to prevent damage from bending, while high-quality shielding protects against electromagnetic interference to maintain data integrity. With a generous length of 3 meters, it allows for flexible placement of connected equipment.

Suitable for

  • Connecting a 9-pin serial device to a 25-pin serial port
  • Transferring files between computers via a serial connection
  • Integrating legacy industrial peripherals into modern setups
  • Professional and office environments requiring reliable serial communication

When it may not be suitable

This cable is built specifically for cross-wired null modem connections and will not function properly if your equipment requires a straight-through serial cable. It is also not designed for modern USB or network-based device connections.

Key specifications

  • Cable length: 3 m
  • Connector 1: DB-25 male
  • Connector 2: DB-9 female
  • Wiring type: Cross-wired / Null-modem
  • Jacket material: PVC
  • Product colour: Grey
  • Compliance certificates: CE, RoHS

How to use

To use the serial null modem cable, first ensure that both the computer and the peripheral device are powered off. Connect the DB9 female end to the 9-pin serial port on your computer or device, and connect the DB25 male end to the corresponding 25-pin port on the other device. Secure any connector screws if applicable to ensure a stable physical connection. Power on your equipment and verify that the communication link is established according to your software requirements.

What to consider before purchase

  • Verify whether your specific hardware requires a cross-wired null modem connection or a straight-through connection
  • Check the physical port types on your devices to confirm compatibility with DB9 and DB25 connectors
  • Ensure the 3-meter length is sufficient for the distance between your connected devices
Usage recommendations: Consult your device manufacturer documentation to confirm the correct pinout requirements before connecting. Avoid placing heavy objects on the cable or bending it sharply at the connectors to ensure maximum longevity.
All features
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.
0.17 kg
Package weight: Weight of the packaged product.
175 g
Cable length: How long the cable is.
3 m
Product colour: The colour e.g. red, blue, green, black, white.
Grey
Package depth: The distance from the front to the back of the packaging.
220 mm
Package height: The distance from the top to the bottom of the packaging.
15 mm
Package width: The distance from one side of the packaging to the other.
128 mm
Master (outer) case height:
276 mm
Master (outer) case width:
372 mm
Connector 1: This is the first connector in the device.
DB-25
Connector 2: This is the second connector in the device.
DB-9
Connector 1 form factor:
Straight
Connector 2 form factor:
Straight
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 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
Quantity per pack:
1 pc(s)
Master (outer) case length:
418 mm
Products per master (outer) case:
120 pc(s)
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS, CE

Instructions

mmo_643043_1633696138_4082_30193.pdf
mmo_643043_1781724596_9563_2994676.pdf

Description

Instructions

mmo_643043_1633696138_4082_30193.pdf
mmo_643043_1781724596_9563_2994676.pdf
Machine translation.

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Customer questions

FAQ

How much does the StarTech.com DB9 to DB25 Null Modem Cable 3 m cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 09.11.2026 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. 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 StarTech 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 StarTech 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.

Where can I download the instructions for StarTech.com DB9 to DB25 Null Modem Cable 3 m?

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.
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