# Smart card reader ACS ACR39U-W1 SmartDuo — USB smart card interface

**URL:** https://aio.lv/en/product--acs-acr39u-w1-smartduo-smart-card--12041174
**Data updated:** 2026-03-12 19:23 (EET)
**Category:** Card readers
**Manufacturer:** ACS
**Manufacturer code:** ACR39U-W1 SmartDuo Smart Card
**EAN:** 4897129310327
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

ACS ACR39U-W1 SmartDuo is a smart card reader designed for interfacing ISO 7816 smart cards via USB. It supports contact smart cards and provides a compact desktop solution for secure authentication, digital signatures, e‑ID and access control tasks. Suitable for offices, banks, government services and integration with authentication or PKI systems.

## Long description

ACS ACR39U-W1 SmartDuo — USB smart card interface is a compact desktop smart card reader engineered to communicate with ISO 7816 contact smart cards over a USB connection. Designed to integrate with authentication systems and public key infrastructure (PKI), this card reader enables secure authentication, digital signatures, electronic ID (e‑ID) verification and access control workflows in office, banking and government environments. The device provides a reliable interface for software that requires standard smart card communication and supports common operating environments.
Advantages
The SmartDuo reader offers a low‑profile, space‑saving design with straightforward USB connectivity and standard smart card protocol support, allowing quick deployment on workstations and kiosks. It is built to provide consistent contact read/write performance and interoperates with existing PKI and middleware stacks. The reader’s desktop form factor simplifies user interaction for card insertion and removal while maintaining secure chip-level communication.
Suitable for
Secure user authentication for desktops and workstations
Digital signing of documents and transactions
Government e‑ID verification and citizen service terminals
Banking customer identification and secure access control
Integration with corporate PKI and certificate-based systems
Key specifications
Interface: USB (full speed) for host connection
Card compatibility: ISO 7816 contact smart cards
Form factor: compact desktop reader with card insertion slot
Power: USB‑powered, no separate power supply required
Operating environment: compatible with common desktop operating systems and standard smart card middleware
How to use
Connect the ACS ACR39U-W1 SmartDuo to a computer via the USB cable and allow the operating system to recognize the device. Install or enable the appropriate smart card middleware or drivers required by your authentication or PKI software. Insert the ISO 7816 contact smart card into the reader until it seats securely; follow on‑screen prompts from your application to authenticate, sign, or read card data. Remove the card when the application indicates that the transaction is complete.
Usage recommendations
For reliable operation, use the reader on a stable USB port and keep drivers and middleware up to date. Handle smart cards by the edges, avoid contact with the gold contacts, and store cards in a protective sleeve when not in use. For integration, verify compatibility with your PKI middleware and test card workflows in a controlled environment before wide deployment.

## FAQ

### 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 ACS 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 ACS 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

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