DVI Switch Splitter Bi-Directional 2X1 / 1X2 - Compact 4K Selector

In this review the DVI Switch Splitter Bi-Directional is evaluated as a compact, metal-housed solution for anyone needing to route DVI signals without constantly swapping cables. The biggest reason to consider it is its straightforward bi-directional design that lets a user either switch two DVI sources to one display or select between two displays for one source, all while supporting up to 4K@30Hz. Setup is manual and intentionally simple, so this is a practical tool for workstations, legacy video gear and desktop AV setups.

Key Features

• Bi-directional switching: Lets you connect two DVI sources to one display or one source to two displays and change the active connection with a button press.
• 4K ready: The built-in video chip supports resolutions up to 3840 x 2160 @ 30Hz so it works with higher-resolution displays and many modern PCs.
• Dual-way control: Switching can be done with the on-unit push button or with the included extension touch switch for remote desktop access.
• Durable metal housing: A compact, metal case improves reliability and suits rack-adjacent or desktop installations where a small footprint is helpful.
• EDID/HDCP handling: Automatic EDID and HDCP adaptation helps the selector negotiate display modes across different devices.

Who It's For

This product is aimed at users who need a simple, manual DVI selector for desktop workstations, legacy monitors or AV test benches where one wants to toggle between input sources or displays without unplugging cables. It suits IT technicians, hobbyist video users and anyone consolidating DVI connections on a crowded desk.

Those who need simultaneous output to two monitors, analog DVI-I mixed signals, or high-refresh 120Hz operation at 1080P should look elsewhere; the unit supports digital DVI-D single link only and is limited to up to 4K@30Hz, so very high frame rate gaming rigs or mirrored multi-monitor setups are not ideal matches.

Pros & Cons

Pros

• Simple manual switching with both a button and extension switch for convenience.
• Supports high resolutions including 3840 x 2160 @ 30Hz and 2560 x 1440 @ 60Hz.
• Solid metal construction gives a compact, durable package for desktop use.
• Auto EDID/HDCP handling eases compatibility with varied displays and sources.

Cons

• Only one display can be active at a time in splitter mode; the two outputs cannot be used simultaneously.
• Some users report mixed results with higher refresh video quality, particularly at 1080P 120Hz.

Specifications

Function Modes	2x1 or 1x2 bi-directional
Supported Resolutions	Up to 3840 x 2160 @ 30Hz (4K)
Connector Type	DVI 24+5 female with nuts (DVI-I physical, digital DVI-D signal only)
Control	Push button on unit and external touch switch cable
Material & Size	Metal housing, 67 x 58 x 24 mm
Compatibility Notes	Supports EDID/HDCP auto adaptation; DVI-D single link only

Our Verdict

The DVI Switch Splitter Bi-Directional is a sensible, low-cost choice for users who need reliable manual switching between DVI sources or displays and value a compact metal enclosure. It delivers clear benefits for desktop AV work where 4K@30Hz and EDID handling matter, but it is not designed for simultaneous dual-output use or for very high refresh gaming displays. For everyday workstation switching and legacy DVI gear it offers good value and solid build quality.

Frequently Asked Questions

Can both displays work at the same time?
No. When used as a splitter only one connected display can be active at a time; the two outputs cannot show the same image simultaneously.

Does it support analog DVI-I signals?
The housing uses DVI 24+5 connectors but the unit supports digital DVI-D single link signals only, not analog.

Will it handle high refresh rates like 120Hz?
It supports up to 1080P at higher frame rates in some cases, but customers report mixed results with 120Hz; the unit is primarily specified for up to 4K@30Hz.