# Cable gender changer Good Connections Alcasa 4945-MF RJ-45 to RS232 (D-Sub 9), 0.1 m, Black

**URL:** https://aio.lv/en/product--good-connections-4945-mf--4442797
**Data updated:** 2026-05-01 23:25 (EEST)
**Category:** Cable Adapters & Converters
**Manufacturer:** Good Connections
**Manufacturer code:** 4945-MF
**EAN:** 4014619557271
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--good-connections-4945-mf--4442797

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Good Connections Alcasa 4945-MF is a short cable gender changer that converts an RJ-45 connection to an RS232 (D-Sub 9) serial port. It features an RJ-45 connector on one end and a D-Sub 9 (RS232) male plug on the other, with a 0.1 m black cable. Suitable for serial device interfacing, legacy equipment, and console connections.

## Long description

Good Connections Alcasa 4945-MF is a compact cable gender changer that converts an RJ-45 socket to an RS232 D-Sub 9 (male) interface. The cable is 0.1 m long and finished in black, providing a simple passive connection for adapting network-style RJ-45 console ports to legacy serial devices using the RS232 standard. It is intended as a short inline adapter rather than a data cable for long distance communication.
Advantages
This adapter offers a compact, low-profile solution for converting an RJ-45 connection to a D-Sub 9 RS232 male plug without additional hardware. Its very short length reduces cable clutter and is useful where only a direct adapter is required. The black housing and standard connector types make it compatible with common console ports and serial equipment.
Suitable for
 Connecting RJ-45 console ports on networking equipment to RS232 D-Sub 9 serial ports
 Interfacing legacy industrial devices or instrumentation that use RS232
 Short, in-rack or on-desk adaptations where minimal cable length is needed
When it may not be suitable
This gender changer is a passive adapter and does not perform signal level conversion or isolation. It is not suitable where active level shifting, USB-to-serial conversion, or full modem control signal mapping is required. The 0.1 m cable length is intentionally short and not designed for routing over distance or in environments that require flexible cable management.
Key specifications
 Connector A: RJ-45 female
 Connector B: D-Sub 9 (RS232) male
 Cable length: 0.1 m
 Color: Black
 Application: Passive gender changer for serial interfacing
How to use
Insert the RJ-45 end into the corresponding RJ-45 console or adapter port and plug the D-Sub 9 male into the serial device’s female RS232 connector. Ensure the pinouts of the connected devices match the expected wiring for your equipment; some hardware vendors use specific RJ-45-to-RS232 pinouts. Power off devices before connecting if recommended by the equipment manufacturer, then power them on after a secure connection is made.
What to consider before purchase
 Confirm the RJ-45-to-RS232 pinout required by your hardware
 Check whether active level conversion or signal conditioning is needed
 Ensure the 0.1 m cable length meets your installation and routing needs
Usage recommendations
Use this adapter for direct console or serial connections where a short, passive interface is sufficient. For remote connections or when RS232 voltage level conversion is required, choose an appropriate active converter or longer, shielded cables as needed.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 0.1 m |
| Product colour | Black |
| Connector 1 | RJ-45 |
| Connector 2 | RS232 |
| Connector 1 form factor | Straight |
| Connector 2 form factor | Straight |
| Connector 1 gender | Female |
| Connector 2 gender | Male |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Good Connections Alcasa 4945-MF RJ-45 to RS232 adapter cable cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 263 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 23.07.2026 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: Cash payment, 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 Good Connections 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 Good Connections 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 1, connector 2, product colour, 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.

## Image

https://aio.lv/img/cache/product/4442797/68699617_large.webp