This product can be used with the
following operating systems:
Windows XP, Me, 2000, 98SE,
7-Port High Speed
Mac OS 10.1 and above
USB 2.0 Hub
Before You Begin
You must have at least the following:

Pentium 233-MHz or faster with 32MB RAM

Available USB 1.1 Port For USB 1.1 Operation

Available USB 2.0 Port For USB 2.0 Operation

Windows XP, 2000, Me, 98SE, Mac OS 10.1 and above
Check Your Package Contents
These are the items included with your purchase:
If any of the below items are missing, please contact your reseller.
• DUB-H7 7-Port Hi-Speed USB 2.0 Hub
• USB 2.0 Cable
• Power Adapter
(5V 3A)
Using a power supply with a different voltage rating will
damage and void the warranty for this product.


Installing the DUB-H7
Plug the AC adapter into the receptor
located on the back panel of the DUB-
H7, then plug the other end into a power
strip or wall outlet.
Type B
Plug the USB type B connector (the
smaller end of the cable) into the back
of the DUB-H7.
Plug the USB type A connector (the
flatter, narrow end of the cable) into an
available USB 2.0 port on your
computer (or USB 1.1 if you don’t have
USB 2.0).
Type A
Your computer will automatically detect a Type A
nd install the DUB-H7.
Your installation is now complete! You may now connect USB
2.0 or USB 1.1 devices to an available USB port on the front of
the DUB-H7.


LED Indicator Description
The DUB-H7 features eight LED indicators.
• The Power LED indicator is green and lights up when the DUB-H7 is powered on by
using the external power adapter. The DUB-H7 does not run on power supplied from the
computer (bus powered).
• The downstream LED indicators are green and light up when the DUB-H7 is plugged into
the host computer. Each port has one status LED. The LEDs light up to indicate that
port is working.
Ports 1-7
Power LED
Note : If a port becomes overloaded, a “current exceeded” event will take place. The LED
of the port will turn off and the message “USB HUB Current Limit Exceeded” appears on
the monitor. Reset the DUB-H7 by disconnecting it for 5 seconds and then powering it
back on by connecting the AC power adapter.
• When connecting USB cables between USB devices and the DUB-H7, make sure that
the cables are connected securely.
• Remember that when connecting USB 1.1 devices to a USB 2.0 hub or host adapter, the
USB 1.1 device will operate only at USB 1.1 speed.
• The DUB-H7 does not have an on/off switch. It is always on, once the external power
adapter has been plugged into a wall socket or power source.
• Connecting USB 1.1 devices to the DUB-H7 may cause all USB devices connected to
the hub to work at USB 1.1 speed. To ensure 480Mbps throughput for your USB 2.0
devices, do not connect USB 1.1 and USB 2.0 devices to the hub at the same time.
• While using a USB device that includes an AC power adapter, use the included power
adapter to ensure proper power and current supply to that device.
• Please remember to unplug the DUB-H7 properly to ensure that no data loss or corrup-
tion takes place with your operating system.

Technical Support
You can find software updates and user documentation on the D-Link website.
D-Link provides free technical support for customers within the United States and
within Canada for the duration of the warranty period on this product.
U.S. and Canadian customers can contact D-Link technical support through our
website, or by phone.
Tech Support for customers within the United States:
D-Link Technical Support over the Telephone:
(877) 453-5465
24 hours a day, seven days a week.
D-Link Technical Support over the Internet:
Tech Support for customers within Canada:
D-Link Technical Support over the Telephone:
(800) 361-5265
Monday to Friday 8:30am to 9:00pm EST
D-Link Technical Support over the Internet:
©2003 D-Link Systems, Inc. All rights reserved. Trademarks or registered trademarks are the property of
their respective holders. Software and specifications subject to change without notice. DUB-H7.02212003