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Introduction
Thank you for purchasing a StarTech.com VGA video
splitter. This product splits the VGA output from one
computer to 2, 4, or 8 VGA displays (depending on
the model purchased). Perfect for use with any VGA
monitor or projector, this product is ideal for auditori-
ums, tradeshow displays, kiosks, and any other appli-
cations that require the use of multiple monitors. It is
designed to maintain excellent video quality and
requires no software or the configuration of compli-
cated setup options.
Features
• Video bandwidth of 250 MHz
• Maximum resolution of 1920 x 1440 pixels
• Supports up to 3 levels of “daisy chaining”
• Maximum distance of 210 feet (65m)
Before You Begin
System Requirements
• A computer with VGA output
• 2/4/8 displays with VGA inputs
• 1 high-quality VGA “switchbox” cable for each
monitor to be connected, and 1 VGA male/female
cable for the source computer
Basic Setup
Before connecting the splitter to the source computer
and displays, you should ensure that the workspace
is configured so that the minimal amount of cable will
be used between the computer and the splitter, and
between the splitter and the displays. While the split-
ter will work at distances of up to 210 feet (65m) from
the connected displays, keeping the cable distance
between each device to the shortest possible length
will ensure you can use the highest possible resolu-
tion. While the splitter supports a maximum reso-
lution of 1920 x 1440 pixels, the maximum resolu-
tion you will be able to use for your application
will depend on the length and quality of the
cables used, and how many interference-causing
devices are nearby. You may not be able to use the
maximum resolution at longer distances. For the best
possible performance, keep the length of cable from
the source computer to the splitter to 6 feet (1.8m).
Connecting the computer to the splitter
Using a high-quality HD-15 VGA male-to-female mon-
itor cable (StarTech.com part number MXT101HQ),
connect the male end to the VGA out port on the
source computer. Connect the opposite end (female)
to the port marked Video In on the splitter.
Connecting the splitter to the displays
Using a high-quality HD-15 VGA switchbox male-to-
male cable (StarTech.com part number
MXT101MMHQ), connect one end to the cable to any
of the ports marked Video Out on the splitter.
Connect the opposite end to the VGA input on the
display. Repeat this process for each display to be
connected. You may also plug the display directly
into the splitter’s Video Out port if possible.
Powering the splitter
Connect the tip on the power adapter (provided) to
the port marked DC 9V on the video splitter. Connect
the opposite end to a wall outlet or other suitable
power source.
Once you have completed the steps above, you can
power on the displays. Each will now display the
image from the source computer.
Daisy Chaining Splitters
These splitters have the ability to be “daisy chained”
to one another so that the overall number of total dis-
plays is increased. You can have a maximum of 3
splitters daisy chained to one video source.
Complete the following steps to daisy chain two or
more video splitters:
Using a high-quality HD-15 VGA male-to-female mon-
itor cable (StarTech.com part number MXT101HQ),
connect the male end to any of the ports marked
Video Out on the source splitter. Connect the oppo-
site end (female) to the port marked Video In on the
next splitter in the chain. Repeat this process if you
wish to connect another splitter.
Specifications
Support,Warranty Information, and Regulatory Compliance Statement
If you ever need help with your product, visit www.startech.com/support and access our com-
prehensive selection of online tools, documentation, and downloads. 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 discre-
tion.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 indi-
rect, 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 consequen-
tial damages.If such laws apply, the limitations or exclusions contained in this statement may not
apply to you.
FCC Compliance Statement: This equipment has been tested and found to comply with the lim-
its 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 deter-
mined by turning the equipment off and on, the user is encouraged to try to correct the interfer-
ence 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.
VGA Video Splitter
ST122L (2 Port)
ST124L (4 Port)
ST128L (8 Port)
Video Input 1 x HD-15 VGA Male
Video Output
HD-15 VGA Female
(quantity varies by model)
Daisy Chain Capable Yes (all models), max. 3
Video Bandwidth 250 MHz
Maximum Display Resolution
1920 x 1440 pixels
(actual usable resolution varies)
Maximum Cable Distance 210 feet (65 m)
Housing Steel
Weight
ST122L: 7.76 oz.
ST124L: 15.87 oz.
ST128L: 22.93 oz.
Dimensions (LxWxH)
ST122L: 5.16 x 2.56 x 1.02 in.
ST124L: 8.07 x 2.56 x 1.02 in.
ST128L: 8.07 x 2.56 x 1.77 in.
Power DC 9V, 500 mA (center positive)
Certification (Regulatory) FCC, CE
Revised: 16 September 2005 (A)