Don't forget to enter settings and change the screen resolution from 480i to 480p. If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. Output resolution: 720p / 1080p (whether the high resolution can be achieved depends on the input signal).
eBay
For PC HDTV Monitor 3.5mm Audio 1080P for Wii To HDMI-compatible Adapter Converter 720P Wii2 To HDMI WII2HDMI Converter Adapter
Aliexpress UK
If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. 1pc x Wii to HDMI Converter. it uses a standard HDMI high-definition interface connection. Output interface: HDMI. Input interface: Wii.
eBay
AV to HDMI-Compatible Converter 1080P RCA Composite To HDMI-Compatible Adapter CVBS AV Adapter For N64 Wii PS1/2/3 Xbox SNES etc
Aliexpress UK
Realistic video/audio effects! 1 WII to HDTV converter. High definition 720p or 1080p high definition output. All digital HDMI format video and audio output with no transmission loss! Support all WII display modes (NTSC,PAL 480i,480p,576i).
eBay
HD 1080P AV to HDMI RCA To HDMI Composite Adapter Converter With USB Cable CVBS AV Adapter For N64 Wii PS1/2/3 Xbox One SNES etc
Aliexpress UK
This is a Wii to HDMI converter / adapter. It allows you to connect a Nintendo Wii (or potentially other composite video sources) via HDMI to a modern HDMI display (TV, monitor, projector). An HDMI cable (shown in photos).
eBay
HD 1080P AV to HDMI RCA To HDMI Composite Adapter Converter With USB Cable CVBS AV Adapter For N64 Wii PS1/2/3 Xbox One SNES etc
Aliexpress UK
If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. 1pc x Wii to HDMI Converter. it uses a standard HDMI high-definition interface connection. Output interface: HDMI. Input interface: Wii.
eBay
1080P for Wii To HDMI-compatible Adapter Converter 3.5mm Audio For PC HDTV Monitor 720P Wii2 To HDMI WII2HDMI Converter Adapter
Aliexpress UK
Wii to HDMI Adapter Converter (Wii2HDMI). ✔ HDMI Output: Converts Wii video/audio output to 1080P HD HDMI. ✔ Universal Compatibility: Works with all Nintendo Wii consoles. ✔ Audio Support: Includes 3.5mm stereo audio jack for headphones or external speakers.
eBay
3.5mm Audio 1080P for Wii To HDMI-compatible Adapter Converter For PC HDTV Monitor 720P Wii2 To HDMI WII2HDMI Converter Adapter
Aliexpress UK
Don't forget to enter settings and change the screen resolution from 480i to 480p. If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. Output interface: HDMI. Power cord x1.
eBay
Full HD 1080P Adapter Connector Video Audio For Wii To Hdmi-Compatible Adapter For PC HDTV Monitor 1080P Wii2 To Hdmi Converter
Aliexpress UK
Don't forget to enter settings and change the screen resolution from 480i to 480p. If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. Output interface: HDMI. Power cord x1.
eBay
HD 1080P AV to HDMI Adpater RCA to HDMI-compatible Composite Converter HDMI to AV RCA Adapter For N64 Wii PS1/2/3 Xbox One SNES
Aliexpress UK