1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your DIGITUS DN-70542 Wireless LAN USB 2.0 Adapter. This device allows your computer to connect to a wireless network using the 802.11n standard, offering data transfer rates of up to 300 Mbps.
The adapter is backward compatible with IEEE 802.11g and 802.11b standards and operates within the 2.4-2.4835GHz frequency range. It also features a Wireless Protected Setup (WPS) function for easy and secure network connection.

Figure 1.1: Top view of the DIGITUS DN-70542 Wireless LAN USB 2.0 Adapter.

Figure 1.2: Angled view of the DIGITUS DN-70542 adapter, highlighting its compact design.

Figure 1.3: Detailed view of the USB 2.0 connector of the DIGITUS DN-70542 adapter.
2. Package Contents
Please verify that all items are present in the package:
- 1 x DIGITUS DN-70542 Mini USB WiFi Adapter
- 1 x Product Support CD-ROM (containing drivers and utilities)
- 1 x User Manual (this document)

Figure 2.1: Retail packaging of the DIGITUS DN-70542 adapter, showing the adapter and its key features.
3. Setup Guide
Follow these steps to install your Wireless LAN USB Adapter:
- Install Drivers: Before connecting the adapter, insert the included Product Support CD-ROM into your computer's optical drive. Follow the on-screen instructions to install the necessary drivers. If your computer does not have an optical drive, or if you encounter issues, please visit the official DIGITUS website to download the latest drivers for your operating system (Windows).
Note: Some operating systems, particularly older versions of Windows, may require driver installation prior to connecting the device. Refer to the Troubleshooting section if you encounter issues during this step.
- Connect the Adapter: Locate an available USB 2.0 port on your computer. Carefully insert the DIGITUS DN-70542 Wireless LAN USB 2.0 Adapter into the USB port.

Figure 3.1: The DIGITUS DN-70542 adapter inserted into a laptop's USB port.

Figure 3.2: A closer view of the adapter connected to a laptop, showing its compact size.
- Verify Installation: After connecting, your operating system should detect the new hardware and complete the installation. You can verify the installation by checking your computer's Device Manager (for Windows) to ensure the wireless adapter is listed and functioning correctly.
4. Operating Instructions
Once the adapter is successfully installed, you can connect to a wireless network.
- Connecting to a Wireless Network:
- Open your computer's wireless network settings.
- Scan for available wireless networks.
- Select your desired network (SSID) from the list.
- Enter the network security key (password) if prompted.
- Click "Connect" to establish the wireless connection.
- Using WPS (Wi-Fi Protected Setup):
The adapter supports WPS for a simplified and secure connection to compatible routers.
- Press the WPS button on your wireless router.
- Within two minutes, press the WPS button on the DIGITUS DN-70542 adapter. The WPS button is a small, recessed button on the side of the adapter.
- The adapter and router will automatically establish a secure connection.

Figure 4.1: The WPS button located on the side of the adapter.
5. Maintenance
To ensure optimal performance and longevity of your DIGITUS DN-70542 adapter, follow these guidelines:
- Keep the adapter clean and free from dust. Use a soft, dry cloth for cleaning.
- Avoid exposing the adapter to extreme temperatures, humidity, or direct sunlight.
- Do not attempt to disassemble or repair the adapter yourself. This will void the warranty.
- Store the adapter in a safe place when not in use to prevent physical damage.
6. Troubleshooting
If you encounter issues with your DIGITUS DN-70542 Wireless LAN USB 2.0 Adapter, refer to the following common problems and solutions:
- Adapter Not Detected / Driver Installation Issues:
- Ensure the adapter is fully inserted into a functional USB port.
- Try a different USB port.
- Reinstall the drivers from the provided CD-ROM.
- Download the latest drivers from the official DIGITUS website.
- If using Windows 8.1 or newer and encountering issues like "Bluescreen" or "infected file" warnings during driver installation, temporarily disable antivirus software (like Windows Defender) during driver installation, then re-enable it immediately after. Ensure you are downloading drivers from a trusted source (DIGITUS official website).
- Check Device Manager to see if the adapter is listed with any error symbols.
- Cannot Connect to Wireless Network:
- Verify that your wireless router is powered on and broadcasting a signal.
- Ensure you are entering the correct network security key (password).
- Move closer to the wireless router to improve signal strength.
- Restart your computer and the wireless router.
- Check if other devices can connect to the same wireless network.
- Slow Connection Speed:
- Ensure your router supports 802.11n for optimal speeds.
- Minimize interference from other electronic devices (e.g., microwaves, cordless phones).
- Update your router's firmware.
- Check for other devices consuming bandwidth on your network.
7. Specifications
| Feature | Description |
|---|---|
| Model | DN-70542 |
| Hardware Interface | USB 2.0 |
| Wireless Standards | IEEE 802.11n, IEEE 802.11g, IEEE 802.11b |
| Data Transfer Rate | Up to 300 Mbps |
| Frequency Range | 2.4 - 2.4835 GHz |
| Security Features | WPS (Wireless Protected Setup) function |
| Operating System Support | Windows |
| Product Dimensions | 24 x 15 x 2 mm (approximate); 15 g |
| Manufacturer | ASSMANN Electronic GmbH PES - BO DE |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or visit the official DIGITUS website. Contact details for customer support can typically be found on the manufacturer's website.
Please retain your proof of purchase for any warranty claims.





