Take a closer look at the HD-SDI to DVI Loop.

This product is discontinued. For an alternative solution, Gefen recommends the HD-SDI to DVI Scaler.

Enables Compatibility Among SDI and DVI Devices

Combines SDI and DVI Equipment for Maximum Interoperability

The ex•tend•it HD-SDI Loop is a sophisticated tool that will convert high definition from SDI sources to DVI displays. The HD-SDI Loop will provide additionally the original SDI source. High quality, high resolution video is maintained, multiple formats (NTSC and PAL) are supported and HDTV resolutions are guaranteed up to 1080i.

With Apple's recent transition to DVI, this Converter supports Apple HD displays including the 23-inch Cinema Display.

SDI (serial digital interface), used primarily in broadcasting, converts and transmits digital video through SDI connectors. It enables video sources to process high definition, high quality video.

How it Works
SDI devices are connected to the SDI input and DVI devices are connected to the DVI output.

Package Includes:

  • HD-SDI to DVI Loop
  • 5v Power Supply
  • User's Manual


  • Saves money—eliminates the need to purchase an expensive SDI display by allowing SDI video to be viewed on standard DVI displays.
  • Saves space—eliminates the need to house additional equipment.
  • Saves time—allows SDI and DVI devices and displays to become multi-tasking, efficient machines.
  • Converts from SDI to DVI.
  • Supports Apple HD Cinema.
  • Lifetime support—includes one-year manufacturer’s warranty and free technical support for the lifetime of the product.


    • SDI - SMPTE 259M-C (270Mb/s)
    • HD-SDI - SMPTE 292M (1.485, 1.485/1.001 Gb/s)
    • DVI-D (via DVI-I connector)
    • Analog RGB (via DVI-I connector)
    • Dual-Link HD-SDI 4:4:4 (XDVI-20d only)

      NTSC, PAL
      • 720p 60, 59.94, & 50Hz
      • 1080i / 1080p 30, 29.97, 25, 24 & 23.98Hz
      • 2048x1080p & sf 24 & 23.98Hz

HD-SDI / SDI Loop Out

DVI-D (Digital RGB) - Female, compliant to DVI 1.0
Resolutions up to 1920x1200 (48, 50 and 60Hz)

Auto detects connected monitor resolution
Auto Mode: Outputs at 60Hz
Frame Sync Mode: Outputs at the input frame rate

The XDVI-20 supports most DVI resolutions. Below are a few:
1024x768 / 1280x720 / 1280x768 / 1280x1024
1400x1050 / 1600x1200 / 1920x1080 / 1920x1200

On-Screen Display (OSD) with Sony infrared remote control

5 volts (screw-on connector)
External Adapter: 100-240VAC 50-60Hz
5.4" x 3.7" x 1" (138mm x 93mm x 24mm)
Shipping Weight: 4 Lbs.



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