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Black 280 mm radiator with two 140 mm ARGB fans and copper water block with rotating blade indicator

RAIJINTEK CO., LTD

RAIJINTEK ORCUS 280 RBW liquid cooler

SKU CH-M591-ZTETF

A 280 mm all-in-one CPU cooler with an external ceramic-axis pump, copper micro-channel block and two 140 mm ARGB PWM fans

  • TypeAll-in-One CPU water cooler
  • Block CompatibilityIntel LGA 2066 / 201x / 1366 / 1200 / 115x / 775 (Core i3 /
  • Block Dim.54 x 54mm
  • Block MaterialCopper
  • Pump Dim.33.00 x 69.50 x 40.00 mm
  • Pump BearingCeramic Axis
  • Copper micro-channel block maximises heat transfer from CPU
  • External pump isolates vibration and runs at 25 dBA max
  • Rotating ARGB blade shows coolant flow and level
  • Two 140 mm PWM fans deliver 65.19 CFM airflow
  • Broad socket support covers Intel LGA 2066 to 775 and AMD AM4 to AM2

Purpose-built AIO for mainstream CPUs

The RAIJINTEK ORCUS 280 RBW is an all-in-one liquid CPU cooler built around a 280 mm radiator and two 140 mm ARGB PWM fans. It targets builders who want a self-contained loop with addressable lighting and broad socket coverage for current Intel and AMD platforms.

External pump, ceramic bearing, hydraulic fans

The pump sits outside the cold plate, using a ceramic-axis bearing rated for 25 dBA maximum noise and a flow rate of 84 L/H at 4500 RPM. Two 140 mm hydraulic-bearing fans spin between 400 and 1500 RPM, delivering up to 65.19 CFM at 30 dBA while the radiator measures 311 x 138 x 28 mm.

Copper micro-channel block

The 54 x 54 mm copper base uses 0.1 mm micro-channels for direct liquid flow and integrates a transparent rotating blade that shows coolant movement and level. The unit includes mounting hardware for Intel LGA 2066, 201x, 1366, 1200, 115x, 775 and AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1 sockets.

Highlights

  • Copper micro-channel block maximises heat transfer from CPU
  • External pump isolates vibration and runs at 25 dBA max
  • Rotating ARGB blade shows coolant flow and level
  • Two 140 mm PWM fans deliver 65.19 CFM airflow
  • Broad socket support covers Intel LGA 2066 to 775 and AMD AM4 to AM2

Specifications

BrandRAIJINTEK
SeriesORCUS
Model0R10B000901
TypeAll-in-One CPU water cooler
Block CompatibilityIntel LGA 2066 / 201x / 1366 / 1200 / 115x / 775 (Core i3 / i5 / i7 / i9 CPU)
AMD Socket AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1
Block Dim.54 x 54mm
Block MaterialCopper
Pump Dim.33.00 x 69.50 x 40.00 mm
Pump BearingCeramic Axis
Pump Capacity84 L/H
Pump Noise25 dBA (Max.)
Radiator Size311.00 x 138.00 x 28.00 mm
Radiator MaterialAluminum
Fan Size2 Fan Slots (140 mm)
Fan Dim.140.00 x 140.00 x 25.00 mm
Bearing TypeHydraulic Bearing
Fan RPM400 - 1500 +/- 10% RPM
Fan Air Flow65.19 CFM (Max.)
Fan Noise30 dBA (Max.)
Fan Connector4 Pin
ColorBlack
LED ColorARGB
Tube Dim.ID - 5mm / OD - 10.6mm
FeaturesBest performing, most user friendly and most spot light catch, an AIO liquid cooling system at market
All-In-One liquid CPU cooler with external PUMP, copper Water block and Rotating Blade with Rainbow ADD light
New design and External Pump with high Q-max (86 L/H) and no vibration incurred on M/B and CPU
Durable and reliable PUMP Bearing type - Ceramic axis
Copper water block by micro channel, extra large contact fin area with multiple channels to provide best flow of liquid
Cooling fan system with 2 14025 Rainbow ADD PWM fans, 8 port control hub and remote controller
8port Control
Package ContentsAccessories:
1 x ARGB-PWM control hub
1 x Remote Controller
1 x Connect cable

Questions about this item

How is the external pump mounted and what step is often missed?

The pump sits outside the case and connects to the 12 V header; the step often missed is securing the 33 x 69.5 x 40 mm pump body so vibration does not transfer to the motherboard.

What maintenance will the cooler need later?

The unit is refillable; check coolant level through the rotating blade window and top up via the fill port when the fluid drops below the visible mark.

What limit appears first during a long heavy load?

The 280 mm aluminum radiator with two 140 mm fans maxes out at 65.19 CFM airflow and 30 dBA, so thermal capacity hits the ceiling before pump flow of 84 L/H becomes the bottleneck.

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