Quick answer

The RetroTINK HD15 Dongle for Dreamcast is a direct RGBHV passthrough adapter for 480p-capable displays or upscalers. It is not an HDMI converter or a standalone upscaler.

Why this dongle exists

The Dreamcast natively outputs 480p over VGA, but most modern monitors and TVs lack a VGA input. The RetroTINK HD15 Dongle preserves that clean 480p signal in a standard HD15 (VGA-style) connector, letting you feed it into a compatible upscaler or a VGA-capable display.

Because it is a passive passthrough, there is no scaling, lag, or signal processing. That is ideal if you already own a RetroTINK-4K or similar device that handles the upscaling itself.

What it does not do

The dongle does not convert the Dreamcast signal to HDMI. If you plug it directly into a display that expects HDMI, you will get no picture. It also will not work with HD15-to-SCART cables, as the signal is RGBHV and not RGBS.

If your goal is a simple Dreamcast-to-HDMI cable, this is not the right adapter. Look for an active converter instead.

Diagnosis: Is this dongle right for you?

  • Symptom: You want to play Dreamcast games at 480p on a modern display or capture card, but your display lacks a VGA input.
  • Likely cause: The Dreamcast outputs RGBHV at 480p, which requires a VGA-style connector. Most modern displays only accept HDMI or DisplayPort.
  • Corrective action: Use the RetroTINK HD15 Dongle to route the clean 480p signal to a RetroTINK-4K, OSSC, or other RGBHV-compatible upscaler. Connect the 3.5 mm audio jack to speakers or your audio system. If you do not own an upscaler that accepts RGBHV, this dongle alone will not give you a picture on an HDMI display.
  • Stop or choose another option: If you need a direct Dreamcast-to-HDMI cable without an external upscaler, choose an active HDMI adapter instead. The HD15 Dongle is a passthrough, not a converter.

Product facts

  • RetroTINK HD15 Dongle Dreamcast: Passthru of the RGBHV signals directly from the Dreamcast. Configured for 480p mode. Double shielded cables with stereo audio on 3.5 mm jack. You get a clean, unaltered 480p signal with separate audio, making it easy to connect to an upscaler or VGA monitor without extra adapters.

    RetroTINK HD15 Dongle Dreamcast

    RetroTINK HD15 Dongle Dreamcast