is this meant as a dedicated cpu cooler or a full water cooled system?

This is a closed loop, dedicated CPU cooler only.

Does the thermal paste that some people say comes included any good?

It is fair at best. I did a decent amount of research on thermal paste before my build. What I found was you are better off spending an extra $12 to get a quality thermal paste. Several tests I saw online showed the paste that comes with CPU coolers does not perform very well. I other words the supplied thermal paste will not keep your CPU as cool as a quality paste will.

does it come with pre-applied thermal paste?

No, it does not. It does come with a small tube of thermal paste, I believe.

what kind of liquid does it use, in case it needs to be cleaned/filled?

This is a closed loop setup. You should never have to refill it. Worst case, there are several websites that sell fluids for watercooled systems.

Does it work with Asus Aura Sync?

It only works with the addressable header on the ASUS motherboards. If your board has only the standard RGB header, you will have to use the supplied controller to make the RGB work.

do i have to add liquid to it ?

no. this is an all in one closed loop unit, aka sealed. no filling or maintenance needed.

does it support msi mystic light?

Not that I am aware of. It comes with a controller (wired.. not wireless) and I keep it in the case. When I want to change the colors I just open it up. It has a couple preset color options to choose from and that's about it

Anyone know if this will work with a 7800x3d?

Yes, the Cooler Master MasterLiquid ML240R ARGB is compatible with the AMD Socket AM4, which is the socket type used by the AMD 7800X3D processor.

What is the fin density of the radiator?

Really? Not sure the manufacturer would even know that. Fin density LOL

I see the control box has a 4 pin rgb header, is this compatible with asus prime x470 aura sync?the board only has a 12v 4 pin rgb headers

No ARGB requires 3 pins if you plug it into a 4 pin It will short the leds and loose functionality. I would double check your motherboard most have 3 pin (ARGB) and 4 pin (RGB) headers.

Cooler Master MasterLiquid ML240R ARGB Close-Loop AIO CPU Liquid Cooler, 240 Radiator, Dual Chamber Pump, AddressableRGB Lighting, Dual MF120R Fans for AMD Ryzen/Intel LGA1200/1151 LGA 1700 Compatible

240mm Radiator Low: Profile Dual Chamber Addressable RGB pump with Dual Addressable RGB Fans for Push and Pull Air Flow
Addressable RGB Fans and Pump - Color option can be controlled through Cooler Master software CM Plus
Includes 1-to-3 Addressable RGB Splitter cable for multiple ARGB Fans
Includes: Wired Addressable RGB Controller for non RGB Motherboards for customize colors
Sleeved FEP Tubing's - Sleek Black Outer Sleeves with FEP Tubing's inside for Durable Lasting and Flexibility
Extra LGA 1700 brackets required, contact MFR to purchase bracket

Custom, Inside and Out

The MasterLiquid's dual-chamber pump outperforms its single-chamber predecessors in heat transfer. The MasterFan Air Balance fans work with our characteristically sturdy build quality to keep your build as quiet as a library.

Addressable-RGB LEDs

Independently-controlled RGB LEDs on the pump and fan offer full color customization, controllable through our software, MasterPlus+.

Dual-Dissipation

Our low-profile, dual-chamber pump enhances performance and durability over our last gen single-chamber designs.

Dual MasterFans

Avoid dynamic losses—dual MasterFans maximize your build's air intake.

Sleeved FEP Tubing

Underneath sleek black sleeves, FEP material beats rubber tubing in keeping liquid where it belongs – inside the cooler.

Adjustable Pump Cap

Remove and adjust the pump's cap to compliment your build's orientation.

Addressable-RGB Ready

1-to-3 A-RGB splitter and proprietary wired A-RGB controller included, allowing you to customize your colors even without an RGB motherboard.

Compare

	MasterLiquid ML240R RGB	MasterLiquid ML120R RGB
Product Number	MLX-D24M-A20PC-R1	MLX-D12M-A20PC-R1
CPU Socket	Intel LGA 2066, 2011-v3, 2011, 1151, 1150, 1155, 1156, 1366, 775 AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1	Intel LGA 2066, 2011-v3, 2011, 1151, 1150, 1155, 1156, 1366, 775 AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1
Radiator
Material	Aluminum	Aluminum
Dimensions	277 x 119.6 x 27 mm	157 x 119.6 x 27 mm
Fan
Dimensions	120 x 120 x 25 mm	120 x 120 x 25 mm
Quantity	2	2
Speed	650–2000 RPM (PWM) ±10%	650–2000 RPM (PWM) ±10%
Air Flow	66.7 CFM, max	66.7 CFM, max
Air Pressure	2.34 mmH₂O	2.34 mmH₂O
MTTF	160,000 hours	160,000 hours
Noise Level	6–30 dBa	6–30 dBa
Connector	4-Pin (PWM)	4-Pin (PWM)
Rated Voltage	12 VDC	12 VDC
Pump
Dimensions	83.6 x 71.8 x 52.7 mm	83.6 x 71.8 x 52.7 mm
MTTF	70,000 hours	70,000 hours
Noise Level	< 15 dBA	< 15 dBA
Connector	3-Pin	3-Pin
Rated Voltage	12 VDC	12 VDC
Warranty	2 Years	2 Years
Compatible Motherboards
ASUS AURA SYNC Motherboards	ROG Maximus X Formula, Code, Hero (Wi-Fi AC), Hero ROG Strix Z370-E Gaming, Z370-F Gaming, Z370-I Gaming, X299-XE Gaming, X299-E Gaming, X399-E Gaming, X370-I Gaming ROG Zenith Extreme, Crosshair VI Extreme Rampage VI Extreme, Prime X299-Deluxe
MSI Motherboards	Z370 Godlike Gaming, Gaming Pro Carbon AC, Gaming Pro Carbon Z370I Gaming Pro Carbon AC
ASRock	Launching in May.

Brand	COOLER MASTER
Series	MasterLiquid ML240R RGB
Model	MLX-D24M-A20PC-R1
Type	Liquid Cooling System

Radiator Size	277.00 x 119.60 x 27.00 mm
Radiator Material	Aluminum

Fan Size	2 Fan Slots (120 mm)
Fan Dim.	120.00 x 120.00 x 25.00 mm (4.70" x 4.70" x 1.00")
Fan RPM	650 - 2000 RPM (PWM) +/- 10%
Fan Air Flow	66.7 CFM (Max)
Fan Noise	6 - 30 dBA
Fan Connector	4-Pin (PWM)
Color	Black
LED Color	RGB

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