# USB to RS-232 Adapter Apte 2520-uniw Black – USB-A to Serial (RS-232)

**URL:** https://aio.lv/en/product--apte-2520-uniw--12238015
**Data updated:** 2026-03-29 16:24 (EEST)
**Category:** Cable Adapters & Converters
**Manufacturer:** Apte
**Manufacturer code:** 2520-uniw
**EAN:** 5907621802462
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--apte-2520-uniw--12238015

## 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

Apte 2520-uniw is a USB-A to RS-232 adapter in black that provides a serial (RS-232) interface via a standard USB-A connection. It enables connection of legacy serial devices (modems, POS terminals, industrial controllers, measurement instruments) to modern computers lacking DB9 ports. The adapter supports plug-and-play operation on compatible systems and simplifies data exchange between USB hosts and RS-232 peripherals.

## Long description

Apte 2520-uniw Black is a USB-A to RS-232 adapter that provides a standard serial interface through a USB-A port. It converts USB signals to RS-232 levels, allowing modern computers without DB9 connectors to communicate with legacy serial devices such as modems, POS terminals, industrial controllers and measurement instruments. The compact black housing and straightforward cable connection make it suitable for desktop and field use where a simple, reliable USB-to-serial bridge is required.
Advantages
This adapter offers a straightforward way to add RS-232 capability to systems that only have USB-A ports. It supports plug-and-play operation on compatible systems, reducing configuration time. The device preserves standard serial signal lines for reliable connection with common RS-232 peripherals and offers a compact form factor for easy installation and transport. Its design minimizes the need for additional converters or specialized PCI/PCIe cards.
Suitable for
Connecting legacy modems to modern laptops or desktops
Linking POS terminals and receipt printers to USB-only computers
Interfacing industrial controllers and PLCs for configuration and monitoring
Connecting measurement instruments and laboratory equipment with RS-232 ports
Key specifications
Interface: USB-A (host) to RS-232 (serial)
Supported signal lines: standard RS-232 signals (TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND) where implemented by the connected device
Power: USB bus-powered (no external power supply required)
Housing: compact black enclosure with fixed cable
Compatibility: supports common operating systems with available USB-serial drivers and plug-and-play on compatible systems
How to use
Connect the USB-A plug to an available USB port on the host computer and attach the RS-232 end to the serial device using the provided connector. Install any required USB-to-serial driver supplied by the operating system or device manufacturer if automatic driver installation does not occur. After the driver is installed and the adapter is recognized, configure the serial port parameters (baud rate, data bits, parity, stop bits, flow control) in the host application or device manager to match the connected RS-232 peripheral.
Usage recommendations
For reliable communication, verify and match serial parameters on both ends before data transfer. Use shielded cabling and avoid running the adapter cable alongside high-power electrical lines to reduce interference. When connecting industrial equipment, ensure signal grounding and appropriate surge protection where required.

## FAQ

### How much does the USB to RS-232 Adapter Apte 2520-uniw cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 127 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, 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 Apte 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 Apte 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/12238015/68105222_large.webp