
DNS-120
Easily Connect and Share 
USB Drives on the Network
Connect Up to Two USB Hard 
Drives1 or Flash Drives1 to the 
Network and Share Files 
Built-in FTP Server2 to Access 
Files over the Internet
Backup Function to Schedule 
Full or Incremental Backups
Easy Search Utility for Quick 
Discovery and Mapping Drives
USB to Ethernet
Easily share files on the network! The D-Link Express  
EtherNetwork® DNS-120 Network Storage Adapter 
connects USB drives 
authorized users access to their files. You can connect 
up to two standalone USB hard drives or flash 
drives and instantly have access to all stored files. 
The DNS-120 can be configured so that your USB 
drives are accessible over the Internet, making it 
convenient to access your files, even when you’re away. 
With its built-in backup function, schedule full or 
incremental backups of important information on the 
network. You can set up PC-to-drive or drive-to-drive 
backups. Either way, an extra copy 
remains on the USB drive connected to the DNS-120 
and ready to take on the road at anytime. 
The DNS-120 does not require you to reboot the 
system when adding USB drives to the network, thus 
eliminating downtime. You can also prevent any data 
1
 to the network, and provides 
of your data 
loss by safely removing the USB drives using the 
“Disconnect” button on the back of the DNS-120. 
Through plug and play setup, installing the DNS-120 
into your network has never been easier. Simply 
connect the DNS-120 to a Fast Ethernet port on 
your network router or switch, and plug in USB 
hard drives or flash drives. 
Additional setup options can be configured using the 
built-in Web-based admin utility including 
upgrade, user account management, folder 
management, scheduled downloads, and DHCP/ 
manual network settings. Using the Easy Search 
utility, discover all DNS-120 units on the network 
and easily create shortcuts to their USB drives.
The DNS-120 Network Storage Adapter is a fast, 
simple, and cost-effective way to connect and 
share storage on the network.
1 
USB drives sold separately 
2 
Unless additional precautions are taken, use of an FTP Server to access files over the Internet  
 does not provide for secure or encrypted transmissions. It is recommended that the end-user 
 utilize a Virtual Private Network (VPN) to establish a secure FTP session.
Failure to properly disconnect USB drive may result in data loss and/or damage to the device.
 firmware 
 

USB to Ethernet
Network Standards
• IEEE 802.3 
• IEEE 802.3u 
DNS-120
Operating Temperature
41°F to 122°F (5°C to 50°C)
USB Standards
• USB 1.1
• USB 2.0
Ports
• Ethernet Port
• Two USB 2.0 Ports
Device Management
• Network Settings
• Auto-IP Capability
• User Account Management
• Folder and Drive Management
• FTP Server
• Scheduled Download
• Backup Function
• Firmware Upgrade
2
Security Features
• Folder Permissions
• Account Based Access to FTP 
 Server
• Account Based Access to 
 Scheduled Downloads
LED Indicators
• Power
• Ethernet
• USB
Buttons
• Disconnect
• Reset
Storage Temperature
-4°F to 122°F (-20°C to 50°C)
Operating Humidity
10% to 90% Maximum 
(Non-Condensing)
Storage Humidity
5% to 95% Maximum 
(Non-Condensing)
Power Input
External Power Supply DC 5V, 
2.5A
Safety and Emissions
• FCC
• CE
Physical Specifications
• L = 5.6 inches
• W = 4.3 inches
• H = 1.2 inches
Weight
• 6.4oz
Warranty
• 1 Year
1 
USB drives sold separately 
2 
Unless additional precautions are taken, use of an FTP Server to access  
 files over the Internet does not provide for secure or encrypted 
 transmissions. It is recommended that the end-user utilize a Virtual 
 Private Network (VPN) to establish a secure FTP session.
Failure to properly disconnect USB drive may result in data loss 
and/or damage to the device.
Connect Extra Storage Space 
to your Network!
D-Link Systems, Inc. 17595 Mt. Herrmann Fountain Valley CA92708-4160  www.dlink.com
© Copyright D-Link Systems, Inc. 2004. All rights reserved. D-Link® is a registered trademark of D-Link Systems, Inc. 
Other trademarks or registered trademarks are the property of their respective manufacturers or owners. 
Price and specifications are subject to changes without notice. See inside package for warranty details. 
* 24/7 Tech Support is available only in USA.