# Adapter Avocent RJ-45 (female) to DB-9 (male) crossover — connectors RJ-45 to DB-9

**URL:** https://aio.lv/en/product--avocent-adb0037--280254
**Data updated:** 2026-03-07 10:51 (EET)
**Category:** Power Cables
**Manufacturer:** Avocent
**Manufacturer code:** ADB0037
**EAN:** 0636430061337
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--avocent-adb0037--280254

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

Avocent crossover adapter converting an RJ-45 female connector to a DB-9 male connector. Designed for serial console and equipment connections where an RJ-45 serial port must interface with a 9-pin D-sub port. Simple passive adapter without signal conversion; used for connecting routers, switches, serial terminals and KVM/management ports.

## Long description

Avocent RJ-45 (female) to DB-9 (male) crossover adapter provides a passive, compact connection between an RJ-45 serial port and a 9-pin D-sub (DB-9) serial port. The adapter is intended for environments where equipment with RJ-45 console jacks must interface with devices that use DB-9 serial ports. This simple adapter carries the required wired crossover mapping without active signal conversion and is suitable for use in server rooms, network racks and management consoles.
Advantages
This Avocent adapter offers a straightforward mechanical interface that occupies minimal space and requires no power. Its passive construction reduces points of failure and eliminates the need for protocol conversion, ensuring direct RS-232 line continuity when used with compatible equipment. The compact form factor makes it convenient for tight cable routing in equipment cabinets and for quick field swaps during maintenance.
Suitable for
 Connecting RJ-45 serial console ports to DB-9 serial ports on routers and switches
 Interfacing management ports on servers, consoles and KVM devices
 Temporary or permanent cabling in data centers and equipment racks
Key specifications
 Connector 1: RJ-45 (female)
 Connector 2: DB-9 (male)
 Function: Crossover wiring for serial console connections (passive, no active signal conversion)
 Typical use: RS-232 serial console interfacing between RJ-45 and DB-9 ports
 Form factor: Compact inline adapter for rack and field use
How to use
Insert an RJ-45 serial cable into the RJ-45 female side of the adapter and plug the DB-9 male connector into the DB-9 serial port of the target device. Ensure both devices use compatible RS-232 signaling and pinouts; this adapter performs a crossover mapping and does not translate voltage levels or protocols. Verify console settings (baud rate, parity, stop bits) on the connected devices and test the connection with a terminal application or management tool.
Usage recommendations
Use this adapter in conjunction with properly wired RJ-45 serial cables and DB-9 ports that follow standard RS-232 pinouts. Avoid using the adapter where active level shifting, isolation or protocol conversion is required. For permanent installations, check cable strain relief and secure connections within rack environments to prevent accidental disconnection.

## Specifications

### Features

| Feature | Value |
|---|---|
| Connector 1 | RJ-45 |
| Connector 2 | DB-9 |
| Connector 1 gender | Male |
| Connector 2 gender | Female |

## FAQ

### How much does the Adapter Avocent RJ-45F to DB-9M crossover cost, and is it available for purchase?

The price is 24.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 26.06.2026 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 Avocent 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 Avocent 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, 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/280254/56606937_large.webp