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Short black cable with a 4-pin female connector at one end and a 3-pin female connector at the other, 30cm long

Hetai Tech

Hetai Tech 5V 3 Pin / 12V 4 Pin 30cm RGB Adapter 4P female

SKU CH-SMK7-364P1

Converts 5V 3-pin and 12V 4-pin motherboard RGB headers for LED strips using a 30cm cable weighing 15g

  • Changer Type2.5" to 3.5" IDE
  • Converts 5V 3-pin to 12V 4-pin RGB headers for compatible lighting
  • 30cm cable length fits tight case routing
  • Lightweight 15g design adds minimal strain to connectors
  • Simple plug-and-play installation for LED strips
  • 4-pin female connector matches standard motherboard RGB headers

30 cm RGB Motherboard Adapter

This 30 cm cable converts between a 5 V three-pin and a 12 V four-pin motherboard RGB header. It weighs about 15 g and is intended for connecting LED light strips inside a PC. The 4P female connector fits standard RGB headers on compatible motherboards.

Builders adding addressable or standard RGB strips

Suits anyone extending or adapting existing motherboard RGB lighting using the supplied pin layouts. Not for systems that lack a 5 V three-pin or 12 V four-pin RGB header, or for builders who need a longer cable than the fixed 30 cm length.

5 V 3-pin to 12 V 4-pin header conversion

The single deciding specification is the dual-header pinout: 5 V three-pin on one side and 12 V four-pin on the other. Verify that your motherboard and LED strip match these exact voltages and pin counts before purchasing.

Highlights

  • Converts 5V 3-pin to 12V 4-pin RGB headers for compatible lighting
  • 30cm cable length fits tight case routing
  • Lightweight 15g design adds minimal strain to connectors
  • Simple plug-and-play installation for LED strips
  • 4-pin female connector matches standard motherboard RGB headers

Specifications

Changer Type2.5" to 3.5" IDE

Questions about this item

Does the 30 cm cable draw noticeable power or generate heat when the RGB strip runs all day?

The adapter is a passive wire that simply passes the motherboard's 5 V or 12 V signal to the LED strip, so it adds no measurable heat or power draw of its own.

What motherboard header must I already have for this 4-pin female adapter to work?

You need a standard 12 V 4-pin RGB header or a 5 V 3-pin addressable RGB header on the motherboard; the cable converts between those two pinouts.

Will this 4-pin female connector fit the older 3-pin RGB strips I already own?

Yes, the cable converts a 12 V 4-pin motherboard header to a 5 V 3-pin strip connection, letting you keep using existing 3-pin LED strips.

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