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Black rectangular radiator with two 140 mm ARGB fans, square pump block with illuminated cover, sleeved rubber tubes connecting them

ASUS

ASUS ROG STRIX LC II 280 ARGB liquid cooler

SKU CH-6BC0-KXMNN MPN ROG STRIX LC II 280 ARGB

All-in-one liquid CPU cooler with a 280 mm aluminium radiator, dual 140 mm ARGB fans and a seventh-generation Asetek pump starting at 840 rpm

  • Radiator size315 × 143 × 30 mm
  • Fan size2 Fan Slots (140 mm)
  • Compatible socketsIntel LGA 2066 / 2011-3 / 2011 / 1366 / 1200 / 115x AMD AM4
  • Block dimensions80 × 80 × 45 mm
  • Cooling block materialCopper
  • Radiator materialAluminum

Fan Size 2 Fan Slots (140mm)

Color Black

Model ROG STRIX LC II 280 ARGB

  • Seventh Gen Asetek pump runs from 840 rpm for cool, quiet operation
  • ROG Axial-tech fans push 102.3 CFM at up to 2100 RPM for strong airflow
  • Addressable RGB on NCVM-coated pump cover and fans adds customisable lighting
  • Reinforced, sleeved 380 mm tubing resists kinks and leaks for long-term reliability
  • Supports Intel LGA 1150/1151/1155/1156/1200/2066 and AMD AM4/TR4 sockets for broad compatibility

280 mm AIO liquid cooler

The ASUS ROG STRIX LC II 280 ARGB is a 280 mm all-in-one liquid CPU cooler built around a seventh-generation Asetek pump that starts at 840 rpm. Two 140 mm ROG Axial-tech fans push up to 102.3 CFM at a maximum of 2100 rpm while producing 35.7 dB(A). The copper cold plate measures 80.00 x 80.00 x 45.00 mm and the aluminum radiator is 315.00 x 143.00 x 30.00 mm. Reinforced sleeved rubber tubing runs 380 mm.

Socket support and lighting fit

The cooler mounts on Intel LGA 1150, 1151, 1155, 1156, 1200, 1366, 2011, 2011-3 and 2066 as well as AMD AM4 and TR4. Individually addressable RGB lighting on the NCVM-coated pump cover and both radiator fans synchronises through Aura Sync. Builders who need support for newer sockets not listed here or who prefer air cooling should look at other solutions.

Clearance and header check

Verify that your case can accommodate a 315 mm long radiator with two 140 mm fan slots and 30 mm thickness. Ensure the motherboard offers a USB header for the supplied control cable and a 5 V addressable RGB header for the 1-to-4 ARGB splitter. Confirm the CPU socket matches the listed Intel or AMD platforms before ordering.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $86.99
Pricier than about 57% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameASUS
Product lineROG STRIX LC II 280 ARGB
Model name90RC00C1-M0AAY0
Product typeLiquid Cooling System
Product colorBlack
Performance
Fan speed700–2,100 RPM +/- 10%
Fan airflow102.3 CFM
Size & build
Radiator size315 × 143 × 30 mm
Fan size2 Fan Slots (140 mm)
Block dimensions80 × 80 × 45 mm
Cooling block materialCopper
Radiator materialAluminum
Fan dimensions140 × 140 × 25.5 mm
Tube size380 mm
Tubing materialSleeved Rubber
Shipping weight2.70 kg
Package size368 × 246 × 155 mm
Compatibility
Compatible socketsIntel LGA 2066 / 2011-3 / 2011 / 1366 / 1200 / 115x
AMD AM4 / TR4
Environment & compliance
Fan noise level35.7 dB (A)
More details
LED lightingARGB

Other versions of this model

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Questions about this item

Will the ASUS ROG STRIX LC II 280 ARGB fit my Intel LGA 1200 motherboard?

The block supports Intel LGA 1200, LGA 115x, LGA 2066, LGA 2011-3, LGA 2011 and LGA 1366 sockets, plus AMD AM4 and TR4. The package includes all necessary brackets and screws for those platforms.

Can I keep my existing 140 mm case fans and run them with the cooler's 140 mm ARGB fans?

The cooler includes two 140 mm ARGB fans rated at 700 to 2100 RPM with 102.3 CFM airflow and 35.7 dB(A) noise. A 1-to-2 fan splitter cable is supplied so you can connect both fans to a single motherboard header alongside other fans.

How do I confirm the Seventh Gen Asetek pump is running after installation?

The pump operates from 840 RPM upward. In the BIOS or monitoring software, check the CPU fan or pump header for a speed reading at or above 840 RPM; the NCVM-coated pump cover and both radiator fans will also show ARGB lighting when powered.

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