# Serial adapter cable Renkforce RF-4543257 — 1× SUB-D 9-pin (male) to 1× SUB-D 25-pin (female)

**URL:** https://aio.lv/en/product--renkforce-rf-4543257--1094388
**Data updated:** 2026-01-13 15:35 (EET)
**Category:** Serial & Parallel Cables
**Manufacturer:** Renkforce
**Manufacturer code:** RF-4543257
**EAN:** 4016139148113
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--renkforce-rf-4543257--1094388

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Renkforce RF-4543257 is a serial adapter cable converting a 9-pin SUB-D connector to a 25-pin SUB-D connector. It allows connection between devices with DE-9 and DB-25 serial ports for data transfer, configuration, or legacy equipment interfacing. Suitable for industrial, diagnostic, and communication applications where direct cable adaptation between RS-232 devices is required.

## Long description

Renkforce RF-4543257 is a serial adapter cable that converts a 9-pin SUB-D (DE-9) male connector to a 25-pin SUB-D (DB-25) female connector. The cable enables direct connection between devices that use different RS-232 physical connectors, allowing data transfer, configuration, or control signals to pass between legacy equipment and modern interfaces without additional converters. The adapter is designed for straightforward wiring compatibility in environments where DB-9 and DB-25 ports must be linked.
Advantages
The adapter cable provides a compact and reliable way to bridge DE-9 and DB-25 serial ports without modifying existing devices. Its fixed wired connections reduce the need for multiple adapters or custom cables, and the sturdy SUB-D connectors help ensure consistent contact and signal integrity in industrial or service settings. The simple passive design means no external power or drivers are required for basic RS-232 signal passthrough.
Suitable for
 Connecting computers or terminals with DE-9 ports to equipment with DB-25 serial interfaces
 Service, diagnosis, and configuration of industrial controllers, modems, or measuring instruments
 Interfacing legacy serial devices in laboratory, workshop, or field environments
Key specifications
 Connector A: 1× SUB-D 9-pin (male)
 Connector B: 1× SUB-D 25-pin (female)
 Signal standard: RS-232 (passive wiring, adapter cable)
 Cable type: fixed serial adapter cable with molded connectors
 Contact finish: metal SUB-D housings for mechanical durability
How to use
Connect the 9-pin male SUB-D connector to the DE-9 serial port of the source device and plug the 25-pin female SUB-D connector into the target device's DB-25 serial port. Ensure both devices are powered off when making the physical connection if recommended by the device manufacturers. After securing connectors using the thumbscrews or fastening hardware, power on the devices and configure serial parameters (baud rate, parity, stop bits, flow control) in each device or terminal software to match the communication settings required for the application.
Usage recommendations
Use the adapter cable where simple passive conversion of RS-232 pinouts is sufficient. Verify pinout compatibility between devices before use, and avoid relying on the adapter for signal level translation beyond standard RS-232 ranges. For long cable runs, electrically noisy environments, or when hardware handshaking differs between devices, consider checking signal integrity or using a powered converter or line driver as appropriate.

## FAQ

### How much does the Renkforce RF-4543257 serial adapter cable 9-pin to 25-pin cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 716 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 15.07.2026 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. 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 Renkforce 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 Renkforce 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

https://aio.lv/img/cache/product/1094388/47664242_large.webp