Does Anybody Know about Cooler Master MasterFan MF122R RGB??

Fancy looking fan.

In Asia yes? Will this site do? -> link: https://item.jd.com/6356173.html
Note: i don't understand a dime written on that site nor i can tell if you can buy it from there.

You can use this 3-way RGB splitter,
specs: http://www.coolermaster.com/cooling/cooling-accessories/1-to-3-rgb-splitter-cable/

Would Australia as a source do? At least, it's closer to Asia than USA is,
amazon: https://www.amazon.com.au/COOLER-MASTER-R4-122R-20PC-R1-MASTERFAN-MF122R/dp/B07CGH8NYP

As far as Aura Sync compatible RGB fan goes, the above Cooler Master fan isn't the only one. In fact, there are plenty of RGB fans that work with Aura Sync. Full list here,
link: https://www.asus.com/campaign/aura/us/Partners-and-promotions.html
(scroll down a bit and select "Cooling" tab)

Those look like Thermaltake Riing RGB fans. Though, what caught my eye is that Enermax fans only come with 1 year warranty, showing that their build quality is low and they won't last long.
Fan review: https://www.tweaktown.com/reviews/8530/enermax-rgb-lighting-3-fan-pack-review/index.html
Enermax warranty length: http://www.enermaxusa.com/support.php
(pick Warranty tab)

In my Skylake and Haswell builds (full specs with pics in my sig), i have NZXT AER140 RGB fans in use to provide additional eyecandy due to the 8x addressable LEDs per fan. NZXT offers twice as much warranty than Enermax does (2 years vs 1 year) and NZXT also states that their AER RGB fan lifespan is 6 years (if not more). Downside is that you'll need NZXT HUE+ to control the LEDs.
Fan specs: https://www.nzxt.com/products/aer-rgb

Regardless the RGB fan you go with, you will pay premium price for it since that's the nature of RGB. Best example would be pricing between Corsair Strafe keyboard non-RGB and RGB versions,
pcpp: https://pcpartpicker.com/products/compare/dJbkcf,rHzZxr/
You're looking to pay extra $50 USD if you want to get RGB LEDs and Cherry MX Silent switches (oh, wrist rest too) over red LEDs and Cherry MX Red switches. With $50 USD, you'd almost get 2nd Corsair Strafe non-RGB keyboard.

While those Raidmax fans do look very similar to NZXT AER RGB fans, they doesn't seem to have much build quality in them. They look like the bottom end of RGB fans,
specs: http://www.raidmax.com/cooling_nv-r120b.html

If those are all that you can afford then go with those. Maybe their color inaccuracy doesn't bother you.

Though, there's one more option how to get Aura Sync compatible "fans" in your system. And that is using RGB fan grille, e.g Silverstone FG121 or FG141,
FG121 for 120mm, specs: https://silverstonetek.com/product.php?pid=740&area=en
FG141 for 140mm, specs: https://silverstonetek.com/product.php?pid=741&area=en

With fan grille, you can put any cheapo fan behind it while your "fans" are still Aura Sync compatible.

For more high-end fan grille, you can look towards Phanteks Halos series,
Halos, specs: http://www.phanteks.com/Halos.html
Halos Digital, specs: http://phanteks.com/HalosDigital.html
Halos Digital Lux, specs: http://phanteks.com/HalosLuxDigital.html

Diff between the three is:
Halos - plastic frame, non-addressable LEDs (all LEDs show same color), 18x LEDs for 120mm, 21x LEDs for 140mm
Halos Digital - plastic frame, addressable LEDs (can set each LED in different color), 30x LEDs for 120/140mm
Halos Digital Lux - aluminum frame, addressable LEDs, 30x LEDs for 120/140mm, comes with extension wire

With HUE+ and AER RGB, you don't need any RGB headers on your MoBo since they are completely independent. My Z170 chipset MoBo (Skylake build) and Z97 chipset MoBo (Haswell build) doesn't have any RGB headers whatsoever, yet, i have HUE+ with AER RGB fans and LED strips in both of my builds. Full specs with pics in my sig.

When it comes to the AER140 RGB fans (140mm), they have very good airflow of 91.19 CFM, which is one of the highest (if not the highest) airflow for a RGB fan. Their static pressure is also good, 1.52 mmH2O, though, they are designed as airflow fan. I have 3x AER140 RGB fan per build and i have them as top exhausts in both of my builds.

As far as controlling the LEDs go, you'll need to download NZXT CAM software which also shows your system info and contains in-game overlay (e.g FPS, GPU usage, temps etc) that you can toggle on/off, change it's position or completely turn it off. Oh, NZXT CAM also monitors your in-game FPS which you can look within CAM software to detect FPS drops.
Oh, at current time, it's not possible to connect LED strips and AER RGB fans on the same channel. That's why there are 2x channels for HUE+.

Though, do note that while HUE+ has 2x channels and support for 4x LED strips or 5x AER RGB fans per channel, if you go with HUE+ & AER RGB set you linked above, with hopes to buy LED strips separately,
LED strips, specs: https://www.nzxt.com/products/hue-plus-extension-kit
you will miss out on the LED connection wire to connect LED strips to your HUE+. I made that mistake when i bought HUE+ & AER RGB set for my Skylake build. I had to contact NZXT and they shipped me the missing wire. It looks like so:

For a far better setup, go with HUE+ and AER RGB fans separately,
HUE+ specs: https://www.nzxt.com/products/hue-plus
AER RGB specs: https://www.nzxt.com/products/aer-rgb
Reason behind this is when you go with HUE+, you'll get 4x LED strips with it while LED extension kit only contains 2x LED strips. I went the smarter way with my Haswell build where i bought AER RGB fans separately without the HUE+. HUE+ also contains all the cables needed to connect AER RGB fans if you buy them separately.

To put it short:
With HUE+ & AER RGB combo, you'll get:
HUE+ (black controller with white indicator LED)
2x 140mm AER140 RGB fans
no wire to connect LED strips
LED expansion kit contains only 2x LED strips

But going with HUE+ and AER RGB fans separately, you'll get:
HUE+ (you can choose either black controller with white indicator LED or white controller with purple indicator LED)
4x LED strips
all wires to connect AER RGB fans as well
with the option to buy up to 5x AER RGB fans to expand your RGB lightshow

HUE+ & AER RGB set has plenty of cables to daisy-chain several fans together. And if you buy one AER RGB fan separately, you'll get these with it;
From left to right:
cable to connect AER RGB to HUE+
long daisy-chain cable (50 cm)
low noise adapter (if you want to cap your fan RPM)
short daisy-chain cable (6 cm)
4x mounting screws

Oh, HUE+ & AER RGB set also includes long and short daisy-chain cables and on top of that a medium daisy-chain cable as well that is 10cm long.

Your MoBo has 6x fan headers which is more than enough. And even if you do run out of those, you can always use Y-splitter to connect 2x fans on single MoBo fan header, effectively doubling the MoBo's fan support amount.

As far as RGB LED strips go, there are 3 main ways you can take: cheap, convenient and endless,
further reading: https://www.pcgamer.com/the-best-rgb-led-lighting-kit/

Or you can look from Aura Sync page (that i linked in my 3rd reply) which RGB LED strips are compatible with Aura Sync and buy one or two of them. All you need to do then is to connect LED strip directly to your MoBo RGB header and you're golden.

Aura Sync compatible LED strip connects directly to your MoBo RGB header and is completely powered by MoBo. The one you currently have is made to show only blue light when it receives power, that's why it uses SATA as power source.

Oh, you can also cut most LED strips into proper length if the one you buy is longer than needed. If LED strip can be cut, it has special markings on it at correct spot, e.g similar to this:

Oh, you can't cut NZXT HUE+ LED strips into size since they doesn't have any markings on them to know where to cut them. Same goes with those Phanteks LED strips that come as 2x 400mm LED strips in a package since LED strips doesn't have any markings on them either to indicate that they can be cut,
video unboxing: https://www.youtube.com/watch?v=ylNsHiJMics

Though Phanteks 1m and 2m LED strips do have the markings on them to know from where to cut them.

As far as setting up the LED strips go, you can daisy-chain them. Just leave the LED strip that is cut into size as a last item in the string. E.g: MoBo RGB header -> 1m Phanteks LED strip (e.g inside your case) -> 1m Phanteks LED strip that is cut into size (at your case's front bottom location).

Good idea to contact CableMod since they can tell for sure what their products are capable of.

One solution would be going only with internal LED lightning (like my PCs have it) and either leave the external blue LED as it is or remove it completely. This method would give you the least amount of hassle.
With internal LED lightning, you can either go with NZXT HUE+ LED strips to sync your LEDs with your AER140 RGB fans or go with CableMod/Phanteks/Cooler Master etc LEDs to sync it with Asus Aura.

If CableMod extension cables aren't long enough, any 4-pin RGB extension cable would do, e.g this one,
amazon: https://www.amazon.com/dp/B075DYYFPC