# Serial Cable EFB Elektronik EK137.3 Beige 3m D-Sub 25

**URL:** https://aio.lv/en/product--efb-elektronik-ek1373--3200556
**Data updated:** 2026-01-13 17:39 (EET)
**Category:** Serial & Parallel Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** EK137.3
**EAN:** 4049759052607
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-ek1373--3200556

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik EK137.3 is a high-quality serial cable with a length of 3 meters. It features a D-Sub 25 connector and comes in a stylish beige color. This cable is designed for reliable data transmission and is perfect for connecting various devices that require a D-Sub interface. Its durable construction ensures long-lasting performance, making it an ideal choice for both personal and professional use.

## Long description

The EFB Elektronik EK137.3 Beige 3m D-Sub 25 serial cable is a 3-metre communication lead designed for devices with a D-Sub 25 interface. The cable delivers a straightforward wired connection for serial data transfer between peripherals, control units, and industrial equipment. Constructed with a D-Sub 25 connector on each end and a neutral beige jacket, it balances unobtrusive appearance with practical reach for desktop, rack, or machinery installations.
Advantages
The cable provides reliable serial signal transmission over a 3 m length with robust connector housings that maintain contact integrity under repeated insertions. Its standard D-Sub 25 interface ensures wide compatibility with legacy and industrial devices that use RS-232/parallel-style connections. The beige outer sheath offers resistance to everyday wear while blending into office and equipment environments.
Suitable for
Connecting computers, printers, or terminals with D-Sub 25 ports
Linking PLCs, HMIs, and other industrial control equipment
Establishing point-to-point serial communications for device configuration or diagnostics
Replacing or extending existing D-Sub 25 wiring in lab and workshop setups
Key specifications
Cable length: 3 metres
Connector type: D-Sub 25 (male/female configuration as per device requirements)
Color: Beige jacket
Construction: Shielded multi-core cable suitable for serial data signals
Intended use: Serial/parallel D-Sub 25 connections for data and control signals
How to use
Identify the D-Sub 25 ports on the devices to be connected and align the connector shells with the port openings. Insert the connectors firmly and secure any thumbscrews or fastening hardware to ensure a stable electrical connection. Route the cable to avoid sharp bends and mechanical strain; allow service loops where necessary. For reliable communication, configure the connected devices to matching serial parameters (baud rate, parity, data bits, stop bits) if applicable.
Usage recommendations
For optimal performance, avoid running the cable in parallel with high-power AC lines to reduce electrical interference. Inspect connector contacts periodically and replace the cable if the jacket or connector shows signs of damage. When used in industrial environments, secure the cable to strain-relief points and maintain appropriate separation from sources of electromagnetic noise.

## Specifications

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Product colour | Beige |
| Connector 1 | D-Sub 25 |
| Connector 2 | D-Sub 25 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

## FAQ

### How much does the Serial Cable EFB Elektronik EK137.3 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 428 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 06.07.2026 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 EFB Elektronik 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 EFB Elektronik 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. More information about warranty service: https://aio.lv/en/warranty

## Image

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