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Black 240 mm AIO liquid cooler with square 1.54 inch LCD pump block and two 120 mm fans

NZXT

NZXT RL-KN240-B2 240 mm liquid cooler with 1.54" LCD

SKU CH-NDFQ-KESWT MPN RL-KN240-B2

A 240 mm AIO liquid cooler with a 1.54 inch LCD for real-time stats or custom images, a pump running at 1,200 to 2,800 RPM and two 120 mm fluid-dynamic-bearing fans rated at 73.47 CFM and 30.0 dBA

  • TypeAIO
  • Block CompatibilityIntel Socket LGA 1851/1700, 1200/115X, AMD Socket AM5 & AM4
  • Pump Speed1,200 - 2,800 ± 300 RPM
  • Radiator Size281 x 120 x 27 mm
  • Radiator MaterialAluminum
  • Fan Size2 Fan Slots (120 mm)

Fan Size 2 Fan Slots (120mm)

  • 2 Fan Slots (120mm)
  • 3 Fan Slots (120mm)

Struck-through versions exist but are not stocked here.

  • Custom 1.54" LCD shows real-time stats or GIFs at 240×240
  • Turbine pump runs 1200–2800 RPM for high flow and pressure
  • High static-pressure fans deliver 73.47 CFM at just 30.0 dBA
  • Zero RPM mode stops fans completely at low CPU loads
  • Split-flow copper cold plate targets heat directly on Intel LGA 1851/1700/1200 and AMD AM5/AM4

240 mm AIO liquid cooler with LCD

The NZXT Kraken Plus 240 is an all-in-one liquid cooler built for mainstream desktop CPUs. It fits Intel LGA 1851, 1700, 1200 and 115X sockets alongside AMD AM5 and AM4 platforms. A 1.54-inch square LCD on the pump head shows real-time system data or custom images and GIFs at 240 × 240 resolution and 30 Hz refresh.

281 mm radiator length

The aluminium radiator measures 281 mm long, 120 mm wide and 27 mm thick, so the chassis must clear that length plus the 25 mm fan depth. Two 120 mm fluid-dynamic-bearing fans push up to 73.47 CFM at 2,000 RPM and connect via 4-pin PWM for automatic speed control. The 400 mm CIIR rubber tubes with nylon braided sleeves give routing flexibility inside standard mid-tower cases.

Cooling capacity for mainstream workloads

The pump runs between 1,200 and 2,800 RPM to move coolant through a split-flow copper cold plate that targets the hottest CPU zones. Fan noise stays at 30.0 dBA at full speed and drops to zero RPM under light loads. This 240 mm unit handles typical gaming and productivity heat loads; sustained heavy overclocks or multi-core rendering may exceed its thermal headroom.

Highlights

  • Custom 1.54" LCD shows real-time stats or GIFs at 240×240
  • Turbine pump runs 1200–2800 RPM for high flow and pressure
  • High static-pressure fans deliver 73.47 CFM at just 30.0 dBA
  • Zero RPM mode stops fans completely at low CPU loads
  • Split-flow copper cold plate targets heat directly on Intel LGA 1851/1700/1200 and AMD AM5/AM4

Specifications

BrandNZXT
ModelRL-KN240-B2
Part NumberRL-KN240-B2
TypeAIO
Block CompatibilityIntel Socket LGA 1851/1700, 1200/115X, AMD Socket AM5 & AM4
Pump Speed1,200 - 2,800 ± 300 RPM
Radiator Size281 x 120 x 27 mm
Radiator MaterialAluminum
Fan Size2 Fan Slots (120 mm)
Fan Dim.120 x 120 x 25 mm
Bearing TypeFluid Dynamic Bearing
Fan RPM500 - 2,000 ± 200 RPM
Fan Air Flow73.47 CFM
Fan Noise30.0 dBA
Fan Connector4-pin PWM
ColorBlack
Tube Dim.400 mm
Tube Materialtube: CIIR rubber with Nylon braided sleeve
Shipping weight2.04 kg
Package size330 × 216 × 140 mm

Questions about this item

How does the 240 mm radiator perform inside a typical case?

The 281 x 120 x 27 mm aluminium radiator fits two 120 mm fans and dissipates heat from the CPU through a split-flow copper cold plate.

What does the 4-pin PWM connector control on this cooler?

It drives both 120 mm fluid-dynamic-bearing fans between 500 and 2,000 ± 200 RPM and enables Zero RPM mode at low loads.

Will the 400 mm tubes reach my motherboard's CPU socket?

The 400 mm CIIR rubber tubes with nylon braided sleeves connect the pump block to the radiator and support Intel LGA 1851, 1700, 1200, 115X and AMD AM5, AM4 sockets.

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