# USB 2.0 to RS232 Adapter ROLINE 12.02.1003

**URL:** https://aio.lv/en/product--roline-12021003--1082818
**Data updated:** 2025-12-29 05:36 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** ROLINE
**Manufacturer code:** 12.02.1003
**EAN:** 7611990194834
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 185.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 153.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--roline-12021003--1082818

## 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 ROLINE USB 2.0 to RS232 Adapter features 4 ports for easy connection to serial devices. It supports data transfer rates up to 115200 bps and is compatible with various operating systems. Ideal for industrial applications, it can be mounted on DIN rails for convenient installation. The adapter is compact and durable, making it a reliable choice for connecting legacy devices to modern USB interfaces.

## Long description

The ROLINE USB 2.0 to RS232 Adapter ROLINE 12.02.1003 provides four DB9 serial ports and a Mini USB type B connector to connect legacy RS232 devices to a PC USB port. The adapter supports USB 2.0/1.1/1.0 standards, offers data transfer rates up to 115200 bit/s, and includes 15 kV ESD protection on all RS232 ports. It is designed for DIN rail mounting and draws power via the Mini USB type B connector (approximately 40 mA). The adapter is compact, black in colour, and suitable for industrial and office environments where serial-to-USB conversion is required.
Advantages
This four-port adapter lets you connect multiple serial devices to a single USB port, reducing the need for additional serial interfaces. Support for USB 2.0 ensures backward compatibility with USB 1.1 and 1.0 hosts. Built-in 15 kV ESD protection helps protect connected equipment from electrostatic discharge. DIN rail mounting simplifies installation in control cabinets and industrial racks, and the low power draw from the Mini USB connector eliminates the need for an external power supply in most use cases.
Suitable for
Connecting RS232 devices (e.g., barcode scanners, PLCs, industrial sensors) to a PC
DIN rail installations in industrial control cabinets
Legacy serial device integration with modern USB-only machines
Key specifications
Model: ROLINE 12.02.1003
Interfaces: 4× DB9 Male (RS232), 1× Mini USB type B
USB compatibility: USB 2.0 / USB 1.1 / USB 1.0
Maximum data rate: up to 115200 bit/s
ESD protection: 15 kV on all RS232 ports
Power: via Mini USB type B connector (approx. 40 mA)
Mounting: DIN rail
Colour: Black
How to use
Mount the adapter on a DIN rail if required, connect the Mini USB type B cable from the adapter to an available USB port on the PC, and attach RS232 devices to the DB9 male ports. Install the appropriate driver for your operating system if prompted. The device supports Windows versions listed by the manufacturer; verify driver compatibility for your OS before installation.
Usage recommendations
Use shielded DB9 cables and secure DIN rail installation to maintain signal integrity and reduce interference. Confirm driver support for your specific Windows version and ensure the host USB port provides sufficient power through the Mini USB connector.

## Specifications

### Other features

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 22.5 x 63.5 x 80.5 |

### Features

| Feature | Value |
|---|---|
| Product colour | Black |

## FAQ

### How much does the USB 2.0 to RS232 Adapter ROLINE 12.02.1003 cost, and is it available for purchase?

The price is 185.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 98 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, Installment. All transactions are 100% secure and encrypted.

### Can USB 2.0 to RS232 Adapter ROLINE 12.02.1003 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 ROLINE 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 ROLINE 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: 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/1082818/56573509_large.webp