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Intertech B-11 active LG 3647 NARROW

80 mm
Price in EUR including VAT
Delivered between 6/1/2026 and 8/1/2026
More than 10 pieces in stock at supplier
free shipping

Diameter2

Product details

The Inter-Tech B-11 is a powerful CPU cooler specifically designed for the LGA3647 socket. With a combination of aluminum and copper, this cooler provides effective heat dissipation, ensuring optimal performance for processors. The cooler features a compact design with a height of 3U, making it ideal for use in server and high-performance computer systems. The integrated 80 mm fan delivers high airflow and can be operated in three speed settings as needed, allowing for customizable cooling performance. The B-11 is equipped with a dual ball bearing that promises long life and quiet operation. Additionally, the cooler comes with pre-applied thermal paste, making installation easier and optimizing cooling performance.

  • Compatible with LGA3647 socket for versatile applications
  • Dual ball bearing for improved durability and quiet operation
  • Three speed settings (1300/2300/4000 RPM) for customizable cooling
  • Made from aluminum and copper for effective heat dissipation
  • Includes pre-applied thermal paste for easy installation.

Key specifications

Socket
LGA 3647
Diameter
80 mm
Max. TDP
205 W
Number of fans
1x
Height (with fan)
80 mm
Item number
13947530

General information

Manufacturer
Intertech
Category
CPU coolers
Manufacturer no.
88885423
Release date
6/10/2020

Cooler properties

Socket
LGA 3647
Supported fan sizes
80mm

Heat sink properties

Materials radiator core
Aluminium
Material cooling fins
Aluminium

Fan dimensions

Diameter
80 mm

Fan properties

Number of fans
1x
Max. TDP
205 W
Max. noise level
42.20 dB
Fan bearing type
Double ball bearing

Power supply

Power consumption
4.80 W
Voltage
12 V

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Width (with fan)
108 mm
Length (with fan)
110 mm
Height (with fan)
80 mm
Weight
600 g

Legal Notice

Product Safety

Package dimensions

Length
16.60 cm
Width
11.60 cm
Height
15.20 cm
Weight
825 g

14-day cancellation right
30-day right of return
24 Months statutory warranty
Report concern

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Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «CPU coolers» category have a defect within the first 24 months?

Source: Galaxus
  • Intertech
    Not enough data
  • 1.be quiet!
    0,2 %
  • 1.Noctua
    0,2 %
  • 1.Thermalright
    0,2 %
  • 4.Scythe
    0,3 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • Intertech
    Not enough data
  • 1.Arctic
    0 days
  • 1.be quiet!
    0 days
  • 1.Endorfy
    0 days
  • 1.Noctua
    0 days

Return rate

How often is a product of this brand in the «CPU coolers» category returned?

Source: Galaxus
  • 6.Arctic
    3,3 %
  • 6.Dynatron
    3,3 %
  • 6.Intertech
    3,3 %
  • 9.be quiet!
    3,4 %
  • 10.Thermaltake
    3,6 %
Source: Galaxus