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Small black converter box with HDMI and RCA ports and a zoom button

Boxwave

Boxwave HDMI to RCA + 3RCA CVBS AV Converter with Zoom audio adapter

SKU CH-9R5A-DDC7K

Converts HDMI video and audio to composite CVBS and stereo RCA at 480i or 576i with selectable NTSC or PAL output and zoom scaling from 100% down to 90% in 2% steps

  • TypeAdapters
  • Converts HDMI to composite video for legacy TVs and recorders
  • Downscaling to 480i or 576i matches older display standards
  • Switches between NTSC and PAL formats for broad compatibility
  • Zoom adjusts picture size from 100% down to 90% in steps
  • Includes 5 V power adapter for reliable operation

HDMI-to-RCA converter with zoom

This new Boxwave adapter converts an HDMI video and audio source into composite CVBS output plus stereo RCA audio for older televisions VHS decks or DVD recorders. It accepts 1080P input and down-scales to 480i or 576i while supporting both NTSC and PAL broadcast formats. The built-in image-switching function corrects the distortion that occurs when a 16:9 picture is forced into a 4:3 frame. The unit is aimed at installers and hobbyists who need to bridge modern HDMI gear with legacy analogue displays.

Zoom control and bundled power supply

A dedicated zoom button lets the user step the picture size through 100 98 96 94 92 and 90 percent with synchronous all-round scaling so the full image remains visible on different TV brands. The package includes a 5V 1A power adapter and a user manual so the converter is ready to operate without hunting for a separate supply. No software or drivers are required; the device works as a passive signal translator once powered.

Compact metal housing and fixed connectors

The converter arrives in a small metal enclosure that resists electromagnetic interference and survives repeated plugging in rack or bench environments. Fixed HDMI input composite video RCA and stereo audio RCA jacks mean no detachable cables to lose and a predictable cable run behind equipment. The layout suits permanent installs where a tidy rear-panel appearance matters more than frequent re-patching.

Highlights

  • Converts HDMI to composite video for legacy TVs and recorders
  • Downscaling to 480i or 576i matches older display standards
  • Switches between NTSC and PAL formats for broad compatibility
  • Zoom adjusts picture size from 100% down to 90% in steps
  • Includes 5 V power adapter for reliable operation

Specifications

TypeAdapters

Questions about this item

Will the external 5V 1A power adapter need replacing after long use?

The converter ships with a 5V/1A power adapter; if it fails you can swap in any 5V 1A supply with the same barrel plug.

What video-quality limit appears first when converting 1080P sources all day?

Output is capped at 480i or 576i CVBS, so the resolution drop is the immediate bottleneck regardless of run time.

Does the unit get hot or noisy during continuous operation?

No fan is fitted and the low-power 5V 1A draw keeps heat minimal; the adapter runs silently.

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