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Amazon.com: Kaico SEGA Megadrive 2X Line Doubler HDMI Adapter - for use with Sega Saturn, Megadrive, Genesis, SNK Neo Geo - Supports RGB and Composite Output - All in One Line Doubler
RetroScaler2x AV Converter Line-Doubler AV to HDMI Converter (Blue) for PS2/N64 | eBay
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Amazon.com: Kaico Analogue HDMI Adapter for use with Nintendo N64 Super Nintendo, Super Famicom and Gamecube - Supports 2X Line-Doubling - A Simple Plug & Play by Kaico for Nintendo 64 GC
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Amazon.com: Kaico Analogue HDMI Adapter for use with Nintendo N64 Super Nintendo, Super Famicom and Gamecube - Supports 2X Line-Doubling - A Simple Plug & Play by Kaico for Nintendo 64 GC
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Bitfunx 2X HDMI Line Doubler Converter for N64/SNES/SFC /NGC S-video/Composite to HDMI – Bitfunx
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Bitfunx 2X HDMI Line Doubler Converter for N64/SNES/SFC /NGC S-video/Composite to HDMI – Bitfunx
Bitfunx 2X HDMI Line Doubler Converter for N64/SNES/SFC /NGC S-video/Composite to HDMI – Bitfunx