Can't find the right ARGB cable

So i bought myself a Sapphire Nitro+ RX 5700 XT and it has a 3 pin connector so its ARGBs can be controlled by the motherboard.

[gpu 3 pin connector](https://www.hardwareluxx.de/images/cdn01/68F6597208AF44FFB753118BA81B8B2A/img/8D844F26ACD0441E9FEA0C2AF452F4BB/Sapphire-Nitro-RadeonRX5700XT-00012_8D844F26ACD0441E9FEA0C2AF452F4BB.jpg)

On my Gigabyte B550 AORUS ELITE motherboard I have an exact 3 pin connector

[motherboard connector picture](https://imgur.com/ZgEE5SE)

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I can't find the appropriate 3pin cable for the hell of it. For all of them I need to wait between 2 and 5 weeks to get it and I really don't wanna wait that long if it's possible.

Anyhow, I found [this](https://www.amazon.de/-/en/Litaelek-5050-3528-4-Pin-Extension-Connector-voltsV/dp/B01972KD62/ref=psdc_3884370031_t1_B0794XFJLP) cable to buy instead of [this](https://www.amazon.de/-/en/sourcing-Female-Extension-Connector-Length/dp/B07RGVRZ1B/ref=sr_1_20?dchild=1&keywords=argb%2B4%2Bpolig&qid=1607517240&quartzVehicle=812-409&replacementKeywords=argb%2Bpolig&sr=8-20&th=1) one. Do you think that this should work as it's just the cable and all connections lead where they are supposed to.

The motherboard and gpu have 3 pins but the width it same as with 4 pins because the second one is missing and the 4 pin connector has all 4 holes. I mean, each pin would be connected normaly as if I used three pin connector, and the second hole would stay unused as it doesn't have where to be connected.

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This all sounds like a really stupid question but I just feel like I should ask before buying