Simple answer to your questions: Yes, you can do this. We'll look at the power limits in detail.
For the fan MOTORS, the mobo manual says each fan header can provide up to 1.0 A current max. Bear in mind that you will plug your CPU cooler of whatever type into the CPU_FAN header, and NOT into a CHA_FAN header with case vent fans. The fans you specify have a spec of max 0.20 A current consumption, so 4 of these on one header can draw at most 0.8 A. NO problem.
The fan specs do not tell us their LIGHTING current requirements, but a common ARGB-fitted fan might use up to 0.5 A current, VERY likely less. The mobo header specs do not say their current max (they specify in terms of LED count with an oddly high number), but it is likely of the order of 3 to 5 A. So again NO problem.
You can use a Splitter for each function and do not need a HUB. There's an important difference, and many sellers use the wrong labels. A SPLITTER has only two types of connections: one with a female connector that goes to a mobo fan header, and several with male pins where you plug in fans. A HUB has those PLUS a third connection that MUST connect to a SATA power output from the PSU. You don't need that.
A SPLITTER for MOTORS can look like this little circuit board
https://www.amazon.com/ThreeBulls-Cooling-Splitter-Adapter-Computer/dp/B07M5P7VHG/ref=sr_1_6?crid=IBOZMM53FPT6&dib=eyJ2IjoiMSJ9.RIe0_ceToDT3fDg7nh4HA9t2OSw7wwyUL3ouhfDVUbY6XAaUVcm2fptCtJYUsLURbjzfdQ-NrLBvzSOtWMv0lpNR-B4i-woaCkolH54358PK5lok3xQ1FELno4hm_uhiTbi8x-nOwCEI2K_0egUlhXytuoljg8ePnGnK-F-3Jzd_ySRAm-M0JdZAmYGpGrJ3MULiDiXWDr0Bh1QRzrjheZtar0bijRMhZLerRN07RBs.qYo9dtS9X6p9f7X_Qpex3T1p2KKLg8zlhSvlVi0CScM&dib_tag=se&keywords=fan+splitter+4+pin&qid=1721793661&sprefix=fan+splitter,aps,96&sr=8-6
You need to mount this so its connection and wires do not short to Ground. You do NOT need to plug the actual CPU cooler into the one output marked CPU. But you MUST plug a fan into that so it can send a speed signal to the host header.
OR it might look like this collection of arms
https://www.amazon.com/Pack-PWM-Fan-Splitter-Cable/dp/B09WZRQ5YV/ref=sr_1_13?crid=IBOZMM53FPT6&dib=eyJ2IjoiMSJ9.RIe0_ceToDT3fDg7nh4HA9t2OSw7wwyUL3ouhfDVUbY6XAaUVcm2fptCtJYUsLURbjzfdQ-NrLBvzSOtWMv0lpNR-B4i-woaCkolH54358PK5lok3xQ1FELno4hm_uhiTbi8x-nOwCEI2K_0egUlhXytuoljg8ePnGnK-F-3Jzd_ySRAm-M0JdZAmYGpGrJ3MULiDiXWDr0Bh1QRzrjheZtar0bijRMhZLerRN07RBs.qYo9dtS9X6p9f7X_Qpex3T1p2KKLg8zlhSvlVi0CScM&dib_tag=se&keywords=fan+splitter+4+pin&qid=1721793799&sprefix=fan+splitter,aps,96&sr=8-13&th=1
With that you must plug a fan into the only output that has all 4 pins so it can report speed.
For the ARGB LIGHTS, this is a good one
https://www.amazon.com/Cooler-Master-Addressable-Universal-Radiators/dp/B083X1W5G4/ref=sr_1_3?crid=CJD0UJ9EA5ZP&dib=eyJ2IjoiMSJ9.7EhpFXt0vEnPmBBxM_EDuI7JKIw9-sxtiks_Co7R3ImGFncEfsiqGwUX6SvRngvskYsfOuBPD8AfATHpJcu3m7wHy73VYjFF5xTAvibVI0ez10ZAeAjpHsza8PXXmkhct1rvZcsUSNT4wIRGjutVbRtC429M1NOFPgXG_yKkQDfwGFCmDJFK7pBqIwOtm57nxIGQld4nx-rwI9Vy65SVdXg_gu-FvT-DK3MpoU9rrXA.N53ioAB9v-rc1o6CpbTQcBihQJEk80Se1WB_waruOvQ&dib_tag=se&keywords=ARGB+Splitter&qid=1721793899&sprefix=argb+splitter,aps,91&sr=8-3&th=1
It has five outputs. In your case, cover the pins of the unused output with tape so they don't short to Ground.
A small note. Your mobo has three headers for ARGB lights they call Addressable Gen2 Headers. They are designed for use with the newest version of ARGB lights called Gen2, but if used that way they will not work with the original ARGB lights. HOWEVER, once you have things installed you will use the ASUS software utility AURA Sync found in their Armory Crate tool to set your lighting preferences. Look in there for an option to tell it to use the old original ARGB system, and not the Gen2 system. Then it will work just fine.
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