be quiet! PURE ROCK 3 LX · BK040

MPN / P/N

BK040

Manufacturer designation

PURE ROCK 3 LX

General data / Model

Pure Rock 3 LX

General data / TDP (W) — manufacturer cooler rating

190

General data / Color option

Black

General data / Overall dimensions without mounting material (L x W x H), (mm)

71 x 124 x 154

General data / Total weight (kg)

0.57

General data / Socket compatibility Intel

1851 / 1700 / 1200 / 1150 / 1151 / 1155

General data / Socket compatibility AMD

AM5 / AM4

General data / Overall noise level (dB(A)) @ 50/75/100% (rpm)

12.4 / 24.4 / 31.2

General data / Number of fans

1

Heatsink specifications / Dimensions (L x W x H), (mm)

46 x 124 x 154

Heatsink specifications / Fin material

Aluminum

Heatsink specifications / Surface treatment

Electrophoresis

Heatsink specifications / Base material

Aluminum / Copper

Heatsink specifications / CPU contact surface

Heat pipe direct touch

Heatsink specifications / Heatpipe number / Diameter (mm)

4 / 6

Fan specifications / Fan model

Light Wings LX 120mm PWM

Fan specifications / Fan dimensions (mm)

120 x 25 x 120

Fan specifications / Speed @ 100% PWM (rpm)

2000

Fan specifications / Airflow at 100% PWM / 12V (CFM / m3/h)

61.8 / 105.1

Fan specifications / Air Pressure at 100% PWM / 12V (mm H2O)

2.51

Fan specifications / Bearing technology

Rifle

Fan specifications / Motor technology

4-pole fan motor

Fan specifications / Rated voltage (V)

12

Fan specifications / Input current (A)

0.15

Fan specifications / Safety current (A)

0.30

Fan specifications / Input power (W)

5.4

Fan specifications / Connector

4-pin PWM

Fan specifications / Lighting connector

✓

Fan specifications / Cable length (mm)

120

Fan specifications / Lifespan (h / 25°C)

60,000

Documented selection limits

Dimensions, fan motor supply, RGB/ARGB supply and socket support are model-specific. Confirm case/RAM clearance and the exact mounting set before purchase. Cooler TDP is the manufacturer rating, not a universal CPU compatibility guarantee.

Specification source: be quiet! ↗
Checked against documentation: 16.10.2026