•  FiDO-4R-ST front
  •  FiDO-4R-ST charger

AJA FiDO-4R-ST Quad- Channel ST Fiber to 3G-SDI Receiver


Availability: Ships in 2-3 business days

Free Expedited Shipping

Product Highlights

  • 4-Channel independent Single Mode ST Fiber Outputs
  • 4K/UltraHD-SDI over 4 fiber links
  • Video Auto-Detection Format
  • Equalized and re-clocked
  • ASI compatible
  • Excels all relevant SMPTE Specs
  • 4-Channel independent 3G-SDI Outputs


AJA’S FiDO-4R-ST is Mini-Converter that offers Quad Channel ST Optical Fiber to SD/ SDI/HD/3G SDI Receiver. This device allows the transport of video streams over 6 miles of range with electrical isolation, which is ideal for eliminating ground loop problems. This Mini-Converter offers 2 duplex or 4 simplex connections via ST Optical Fiber connectors.

In addition, this converter provides 4x individual outputs channels for SDI, HD-SDI, 3G-SDI and 4x quadrants inputs for 4K-SDI.Moreover, the FiDO Mini-Converter excels all relevant SMPTE Specs, versatile, and are rugged, and suitable for outdoors to indoors. The user can choose from ST, LC to SC connectors, this can vary with the converter model.

Compact and Portable

The FiDO converters are compact, works fine in tight spaces behind on camera, gear rack and trucks. This converter has a locking power connector that can't be removed accidently or pull loose. Another feature is the P-TAP power cable that allows for the battery power in remote locations.

Universal Power Supply

All AJA Mini-Converters are shipped with a universal power supply, which includes an international plug connection for use around the world.

AJA Mini-Matrix

All AJA’s Mini-Converters are now available as a mobile app on iOS. This feature allows the user to have control over their Mini-Converters though an app. This app helps the user to find a convenient converter for any type of situation, if is needed

Video Formats 100 Mbps - 3 Gbps, format agnostic
Video Input Digital 4-Channel independent Single Mode ST Fiber Outputs, SMPTE-297
Nominal Wavelength: 1260 - 1620 nm
Optical Sensitivity: -18dBm (min)
Overload Power: -3dBm (min)
Video Output Digital 4-Channel independent 3G-SDI Outputs, SMPTE-259/292/424
Reclocking 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.966 Gbps, 2.970 Gbps - Auto Select
All other rates are passed through and not reclocked
Dimensions (w x d x h) 4.6" x 4.10" x 0.92" (117 x 105 x 24mm)
Power 4 watts max Uses 5-20VDC power (AJA power supply model DWP-U-R1 included)
In The Box 1x FiDO-4R-ST 4-Channel Single-Mode ST Fiber to 3G-SDI Receiver
DWP-U-R1 Power Supply
Limited 5-Year Warranty

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