When should I choose the powered MP299A over the unpowered MP299?

Choose MP299A if your source device (set-top box, streaming stick, single-board computer, older console) cannot supply sufficient power via HDMI alone. Symptoms of underpowered conversion include flickering, intermittent dropout, or blank display. The Micro USB power port eliminates this variable.

What resolution and refresh rate does the MP299A support?

The MP299A converts HDMI to VGA at up to 1080P@60Hz. It is built to HDMI 1.4 standard with 10.2 Gbps bandwidth.

What connectors and cable materials are used?

The adapter features 24K gold-plated connectors and OFC high-purity oxygen-free copper conductors. The housing is white ABS.

What power input does the adapter require?

The MP299A includes a Micro USB power port. It can be powered from a standard phone charger, USB port, or any spare USB power source.

Single Port Converter

HDMI to VGA Adapter with Power (1080P) - MP299A

Name: HDMI to VGA Adapter with Power (1080P) - MP299A
Brand: Tonetron
SKU: MP299A

HDMI to VGA adapter with a Micro USB power port — 1080P@60Hz, HDMI 1.4 / 10.2 Gbps, for sources whose HDMI port cannot power the conversion on its own.

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Overview

The MP299A is the externally powered version of this conversion. It converts HDMI to analogue VGA at up to 1080P@60Hz and adds a Micro USB power port, and that port is the entire reason to choose it over the MP299.

An HDMI-to-VGA conversion is active — it has to digitise and re-encode the signal, which takes power. Most laptops supply enough from the HDMI port itself, so the unpowered MP299 works fine. But some set-top boxes, streaming sticks, single-board computers, older consoles and long HDMI runs sit right at the margin, and the symptom is not a clear error: the display flickers, drops out intermittently, or stays blank with no indication why. Feeding the adapter from a phone charger or any spare USB port through the Micro USB input removes the variable entirely.

For installers and IT buyers that predictability is usually worth specifying up front, because diagnosing an intermittent display fault in a room full of waiting people is far more expensive than the powered model.

Built to HDMI 1.4 with 10.2 Gbps bandwidth, 24K gold-plated connectors, OFC high-purity oxygen-free copper conductors and a white ABS housing. The box contains one adapter.

Housing colour, printed branding and retail packaging are customisable for OEM/ODM orders.

Specifications

Spec	Value
Model Code	MP299A
Conversion	HDMI to VGA
External Power	Micro USB power port supported
Connector Plating	24K gold plated
Housing Material	ABS
Max Resolution	1080P@60Hz
HDMI Standard	HDMI 1.4
Bandwidth	10.2 Gbps
Conductor	OFC high-purity oxygen-free copper
Cable Color	White
In the Box	Adapter x1

Frequently Asked Questions

When should I choose the powered MP299A over the unpowered MP299?: Choose MP299A if your source device (set-top box, streaming stick, single-board computer, older console) cannot supply sufficient power via HDMI alone. Symptoms of underpowered conversion include flickering, intermittent dropout, or blank display. The Micro USB power port eliminates this variable.
What resolution and refresh rate does the MP299A support?: The MP299A converts HDMI to VGA at up to 1080P@60Hz. It is built to HDMI 1.4 standard with 10.2 Gbps bandwidth.
What connectors and cable materials are used?: The adapter features 24K gold-plated connectors and OFC high-purity oxygen-free copper conductors. The housing is white ABS.
Can I customize the MP299A for OEM/ODM orders?: Yes. Housing colour, printed branding, and retail packaging are customizable for OEM/ODM orders.
What power input does the adapter require?: The MP299A includes a Micro USB power port. It can be powered from a standard phone charger, USB port, or any spare USB power source.