Showroom Open - Service Updates

Noctua NH-U12S DX 3647 Intel Socket LGA3647 CPU Cooler

CCL Code: CLR2041
Manufacturer Code: NH-U12S DX-3647
Manufacturer: Noctua


Sorry, this product has been discontinued. We have found some similar products below.

Customers who viewed this item also viewed...

 Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-U12S DX-3647 features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 120mm size NH-U12S heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A12x25 120mm fans, it provides an excellent balance of performance, compatibility and quietness of operation. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-U12S DX-3647 forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers.

Please note that the NH-U12S DX-3647 is a dedicated version for the Intel LGA3647. Due to its customised larger base, it cannot be used on any other sockets and is incompatible with Noctua’s standard mounting kits. 

CPU Types

Socket Intel LGA3647


Fan Bearing Type SSO2
Fan Speed 450 ~ 2000 RPM
Fan Noise Level 22.6 dBA Max
Airflow 102.1 m3/h Max

Fan Speed Controller

Allowable Power 1.68 W
Voltage 12 V


Form Factor CPU Cooler
Base Material Copper
Heatsink Material Aluminium
In The Box NH-U12 DX 3647
Width 125 mm
Depth 97 mm
Height 158 mm
Weight 1.018 kg
Fan Width 120 mm
Fan Depth 120 mm
Fan Height 25 mm


Warranty 6 Years

Key Features

Heatpipe Technology Yes
Includes Fan Yes
Display Model in Showroom No
L.E.D Fan No LED
Liquid Cooler No
Watercooler No
Cooler Height 158 mm
Compatible with Socket 3647 Yes
Radiator Size N/A mm

Item Details

Manufacturer Noctua
Manufacturer Code NH-U12S DX-3647
EAN 9010018000146
UPC 841501100147
Condition New

Warranty Information

Warranty 6 Years

Manufacturer Information

Manufacturer Noctua
Manufacturer Code NH-U12S DX-3647

Do you have you a question about the Noctua NH-U12S DX 3647 Intel Socket LGA3647 CPU Cooler?