does this allow me to have two monitors side by side as an extension or just copy the same image?

This will only allow you to mirror your monitor (just a copy of the same image). If that is what you want to do, here's a tip: I am using a pc running windows xp and I wanted to mirror the image to a tv. Using this product I have to have only the monitor plugged into this device when I start up my computer. Once the computer starts up, then I can plug the tv into the other plug on this device. Otherwise when the computer is starting up and trying to sense the monitor, it will sense both the monitor and the tv and get confused and then nothing will show up on either device. Hope this was helpful.

Can i connect a pc(dvi) and my ps4(hdmi) to connect to my monitor (dvi) by having this switch on the input of the monitor instead of the opposite way.

To my knowledge, no you cannot. There is no way to toggle it between the two. It is designed for the dvi to be split outward, not inward.

Does this work in reverse? Can I connect 2 DVI sources to a single DVI monitor?

Tried that, won't work. SITUATION: 2 separate DVI-D monitors, 2 separate computers with dual DVI-D outputs. Bought two splitters (StarTech), attached male end to each monitor (Asus 23.5 1920x1080 res.) Hooked up DVI-D cables to each splitter so that I could turn on one computer at a time and use both monitors WITHOUT HAVING TO MANUALLY SWITCH DVI-D CABLES EVERY TIME. RESULT: Bleed thru from one computer that was NOT powered up caused one or both monitors to switch on/off, the computer that was off even had the video card illuminated with partial power, (NOT a good thing as it may damage cards)!!!!BTW: I took apart one StarTech splitter in hopes of disabling/cutting one of the female connectors...WOW it is well made, perfectly shielded and manufactured!! So this splitter will ONLY mirror the output for two separate monitors for one source, like having a large TV Mirroring whats on your computer monitor. Cheers, MickeyMedic.

Will this product work with 720p, 1080i, or 1080p signals?

Did not work for my client - cloned the same screen on both monitors

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🔗 Double your display, double your impact.

PLUG PLAY SIMPLICITY - No drivers or power needed—just connect and amplify your workspace instantly.
COMPACT 30 CM CABLE DESIGN - Integrated cable reduces connector strain and clutter for a sleek setup.
SEAMLESS SCREEN DUPLICATION - Mirror your DVI-D digital source flawlessly on two displays simultaneously.
CRYSTAL CLEAR FULL HD OUTPUT - Enjoy sharp 1920x1200 resolution on both screens without signal loss.
TRUSTED STAR TECH RELIABILITY - Backed by 30+ years of IT-grade quality and free expert support.

The StarTech.com DVI-D to 2x DVI-D Splitter Cable is a 30cm passive distribution cable that duplicates a single DVI-D digital video signal to two identical DVI-D outputs at Full HD resolution (up to 1920x1200). Designed for professional setups, it features an integrated cable to reduce connector stress and is ideal for dual-monitor mirroring with reliable StarTech quality.

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Connector Gender	Female-to-Female
Compatible Devices	Monitor
Color Name	black
Batteries Included	No
Batteries Required	No
Brand	StarTech.com(スターテック)
Manufacturer	スターテック(StarTech.com)
Item Model Number	DVISPL1DD
Model Year	2007
Operating System	not_machine_specific
Cable Type	DVI
Product Dimensions	30.48 x 4.32 x 3.81 cm; 153 g
Item Weight	0.15 Kilograms

StarTech.com DVI-D to 2x DVI-D Splitter Cable / 30cm/1x DVI-D (25-Pin) Male to 2x DVI-D (25-Pin) Female / Distribution Cable / Splitter / Black DVISPL1DD

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