Detachable DVI Extension Module M1-201SA - Optical DVI to 500m

In this review of the Detachable DVI Extension Module M1-201SA, the bottom line is simple: this unit is for AV installers and IT professionals who need to extend uncompressed DVI video reliably over long distances. The M1-201SA stands out because it uses duplex LC multi-mode fiber to deliver full VESA resolutions up to WUXGA (1920 x 1200) at 60Hz to distances up to 500 meters (1,640 ft), and it offers a convenient self EDID programming feature that simplifies setup. For projects where signal integrity, low RFI/EMI and long cable runs matter, this module delivers a focused, practical solution.

Key Features

• Optical extension: Extends DVI video over a pair of duplex LC multi-mode fibers to as far as 500 meters, preserving image quality for long runs.
• High resolution support: Supports all VESA resolutions up to WUXGA 1920 x 1200 at 60Hz, which covers most professional displays and conference-room setups.
• Detachable modules: Compact, detachable DVI-plug modules plug directly to sources and displays to reduce clutter and simplify installation.
• Self EDID programming: Reads EDID from the connected display and restores it to the transmitter EEPROM automatically, eliminating separate DDC wiring during setup.
• Optical advantages: Uses optical transmission to reduce RFI/EMI and increase security compared with long copper runs, useful in sensitive or noisy environments.

Who It's For

The M1-201SA is best for AV integrators, IT teams, digital signage installers and anyone who needs to run uncompressed DVI video beyond typical copper limits while maintaining full WUXGA resolution. It is particularly useful in buildings, campuses or venues where long cable runs and low electromagnetic interference are priorities.

Those who should look elsewhere include users who only need short HDMI or DVI cable runs under a few meters, or buyers who require support for newer digital interfaces such as native HDMI 2.x or DisplayPort without adapters. This module is optimized for DVI signaling and fiber extension rather than consumer HDMI convenience.

Pros & Cons

Pros

• Extends uncompressed DVI up to 500 m (1,640 ft) while supporting WUXGA 1920 x 1200 at 60Hz.
• Detachable DVI-plug modules allow direct connection to graphics sources and displays for tidy installations.
• Self EDID programming reads and stores display EDID automatically, simplifying configuration.
• Optical transmission reduces RFI/EMI and improves security over long runs.

Cons

• Designed specifically for DVI over multi-mode fiber, so it is not a native solution for newer HDMI or DisplayPort devices without adapters.
• Requires fiber infrastructure and an external power adapter for full operation, which may add installation cost.

Specifications

Our Verdict

The Detachable DVI Extension Module M1-201SA is a pragmatic, high-value choice for professionals who need reliable, long-distance DVI video distribution with preserved resolution and simplified setup. Its detachable modules and self EDID programming save installation time, and the optical link reduces interference risks. Choose this unit when you have fiber infrastructure and require uncompressed DVI to WUXGA over long runs.

Frequently Asked Questions

Can this module carry 1920 x 1200 at 60Hz?
Yes, the M1-201SA supports WUXGA 1920 x 1200 at 60Hz over the specified fiber distance.

How far can the signal be extended?
The optical DVI signal can be extended up to 500 meters (1,640 ft) over a pair of duplex LC multi-mode fibers.

Does the unit require special EDID wiring?
No, it features self EDID programming that reads the display EDID and restores it to the transmitter EEPROM automatically.