StarTech.com USB2105S User manual

Ethernet Adapter
USB2105S Instruction Manual
Actual product may vary from photo
USB 2.0 to 10/100 Mbps Ethernet Adapter

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This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and
do not represent an endorsement of a product or service by StarTech.com, or an
endorsement of the product(s) to which this manual applies by the third-party company in
question. Regardless of any direct acknowledgement elsewhere in the body of this
document, StarTech.com hereby acknowledges that all trademarks, registered
trademarks, service marks, and other protected names and/or symbols contained in this
manual and related documents are the property of their respective holders.

Instruction Manual
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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Monitoring the Ethernet connection . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Accessory Products from StarTech.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Instruction Manual
1
Thank you for purchasing a StarTech.com USB 2.0 to 10/100Mbps Ethernet adapter.
Now, you can communicate with 10BaseT and 100BaseTX Ethernet networks using your
USB port. This product is ideal for notebook and desktop computers where Ethernet
ports are not available. The USB2105 is installed without having to open your computer
and can be connected or disconnected without rebooting the computer making it the
perfect addition to small/home offices, departmental networks or network gaming setups.
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Features
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•Backward compatible with USB 1.1
•Compact size maximizes flexibility
•Supports Full-Duplex Ethernet connections
•A PC with one available USB port
System Requirements
•Windows 98SE, ME, 2000, XP, Vista, CE 4.2
•Allows users to share peripherals, transfer files and share a connection to the
Internet
•Connects at a full 100Mbps via USB 2.0, up to 8 times faster than a USB 1.1
adapter
•1 x USB to Ethernet Adapter
Package Contents
•1 x Instruction Manual
•1 x Driver CD
This package should contain:

Instruction Manual
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1. Power on the host computer.
2. Insert the driver CD into the CD-ROM/DVD-ROM drive.
3. Click on the Start button and select Run.
4. Click the Browse button and select the CD-ROM/DVD-ROM drive.
5. Open the folder entitled MosChip on the driver CD.
6. Open the MCS7830 folder and then WinXP_WHQL\Win32 folder.
7. Select Setup.exe and then click the Open button. Driver installation will commence.
8. Follow all prompts to continue installation. Once the driver has been fully installed,
restart Windows.
9. After restarting Windows, connect the USB 2.0 Ethernet dongle to any available USB
2.0 port on the computer.
10.Windows should automatically detect the USB 2.0 Ethernet dongle and load any
necessary software remaining. Follow the instructions to conclude driver installation.
11.Attach the adapter to your hub/switch/other computer using a Category 5 or better
UTP patch cable (not included).
Please note: StarTech.com carries a wide range of Ethernet cables in various colors and
lengths. Please see the section entitled Accessory Products from StarTech.com on
page 3 for further details, or visit our website at www.StarTech.com.
Monitoring the Ethernet connection
USB2105S offers three LEDs, allowing simple monitoring of the Ethernet connection.
PWR - This LED indicates whether or not USB2105S is powered via USB connection to
the host computer. If it is, the LED will become illuminated (red).
LNK - This LED indicates whether or not a connection is present between the adapter
and network devices (via Ethernet cable). If it is, this light will become illuminated
(green). This LED also indicates activity - when there is network activity, this LED
will blink in synch with network traffic.
SPD - When in 10Mbps mode, this light will remain off. When in 100Mbps mode, this
light will illuminate (green).

Instruction Manual
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Contact your local StarTech.com dealer or visit www.startech.com for cables or other
accessories that will help you get the best performance out of your new product.
M45PATCH3BL
3 ft Blue Molded Category 5e (350 MHz) UTP Patch Cable
M45PATCH6BL
6 ft Blue Molded Category 5e (350 MHz) UTP Patch Cable

Instruction Manual
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StarTech.com’s lifetime technical support is an integral part of our commitment to provide
industry-leading solutions. If you ever need help with your product, visit
www.startech.com/support and access our comprehensive selection of online tools,
documentation, and downloads.
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This product is backed by a one-year warranty. In addition, StarTech.com warrants its
products against defects in materials and workmanship for the periods noted, following
the initial date of purchase. During this period, the products may be returned for repair, or
replacement with equivalent products at our discretion. The warranty covers parts and
labor costs only. StarTech.com does not warrant its products from defects or damages
arising from misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their
officers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of profits, loss of business,
or any pecuniary loss, arising out of or related to the use of the product exceed the
actual price paid for the product. Some states do not allow the exclusion or limitation of
incidental or consequential damages. If such laws apply, the limitations or exclusions
contained in this statement may not apply to you.
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Regulatory certifications FCC, CE, ROHS
Connectors 1 x RJ45 Port
1 x USB A Female
Maximum Data Transfer Rate 200Mbps in Full Duplex Mode
100Mbps in Single Duplex Mode
Chipset MOS Chip MCS7830

Revised: 31 May 2007 (Rev. A)
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StarTech.com is “The Professionals’ Source for Hard-to-Find Computer
Parts”. Since 1985, we have been providing IT professionals with the
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