Following in the footsteps of the 3D Rocket and 3D Cooler before it, the Gigabyte 3D Rocket II GH-PCU23-VE heatsink takes a similar approach to cooling the full spectrum of processors - but with an aim towards reduced temperatures and noise output. The bright blue LEDs make Gigabyte's 3D Rocket II cooler a great candidate for windowed chassis. The GH-PCU23-VE is compatible with socket 478 775 Intel Pentium 4, and socket 754/940/939 AM2 AMD Athlon64 processors