480p. It doesn't upscale or alter the image because it takes the best possible output from the Dreamcast (VGA signal) and outputs it as HDMI (along with audio). Trying to upscale the image (at this point in time) causes too many issues. The only other way is to get a 'DCHDMI kit' that is installed inside the internals of the Dreamcast and that requires a lot of skilful soldering and is an expensive modification. This is probably the best 'plug and play' solution right now. Thank you, Kaico

Anyone know if this is compatible with the elgato hd capture card? the pound cable did not seem to work with it.

Nope. Tried it just now & it says "format not supported."

The quick-start guide says that the led light would be green to indicate that it is working, yet it is blue and still working. should i be worried?

I think as long as it's still working you should be fine. I don't even use mine much anymore meaning my Dreamcast.

Why won't it go full screen? the size is about 16" x 16" on a large 50" sony tv

That would be part of your TV's settings. The Dreamcast runs at a low resolution, so it's not using the full screen. Look in your TV's settings for something that says "stretch", "fit", or "scale". Your TV may also just not support 480p video.

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Kaico Dreamcast HDMI Adapter, Plug & Play Converter with VGA & RGBS Support | Supports VGA and RGBS output for Dreamcast games across all regions, with clear audio/video and no external power needed

Product ID: 149807503

Details

Brand
Kaico
Color
silver
Compatible Devices
Television
Connector Type
HDMI VGA
Item dimensions L x W x H
3.54 x 1.77 x

🎮Seamless Dreamcast compatibility

📺Supports VGA & RGBS output

🔌Plug & Play simplicity

246.22 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎮 Elevate your retro gaming with flawless HD clarity—because your Dreamcast deserves the best!

COMPACT SLEEK DESIGN - Lightweight silver finish with an 8.66-inch cable fits perfectly in any modern entertainment setup.
PEACE OF MIND WARRANTY - 12-month warranty with dedicated support ensures your Dreamcast experience stays flawless.
CRYSTAL CLEAR HD OUTPUT - Transforms VGA signal to HDMI with zero audio/video loss for stunning visuals and sound.
NO EXTERNAL POWER NEEDED - Pure plug & play convenience—just connect and game, no extra adapters or power cables required.
UNIVERSAL DREAMCAST COMPATIBILITY - First HDMI adapter supporting both VGA & RGBS for every Dreamcast game, no region lock.

The Kaico Dreamcast HDMI Adapter is the first-of-its-kind converter supporting both VGA and RGBS outputs, delivering pristine HD video and audio from your Sega Dreamcast to modern TVs without any external power. Its plug & play design ensures effortless setup, while a 12-month warranty guarantees reliable performance for every retro gaming enthusiast.

Specifications

ASIN	B07SK85NGH
Best Sellers Rank	#421 in Audio & Video Connectors & Adapters
Brand	Kaico
Cable Length	8.66 Inches
Color	silver
Compatible Devices	Television
Connector Type	HDMI, VGA
Current Rating	1 Amps
Customer Reviews	4.4 4.4 out of 5 stars (1,715)
Finish	Hdmi
Global Trade Identification Number	05060556730214
Item Dimensions	3.54 x 1.77 x 0.59 inches
Item Weight	46 Grams
Manufacturer	Kaico
Model Number	5060556730214
Number of Items	1
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Smart Home Compatibility	Not Smart Home Compatible
Unit Count	1.0 Count
Warranty Description	1 Year
Warranty Type	Limited

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246.22 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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