4 piece set of brand new Xbox 360 RAM heatsinks. RAM heatsinks can help prevent RROD and error code E74 (E74 originates mostly from the HANA/ANA chip) in your Xbox 360 and can also help make a repaired RROD unit last longer due to the upgraded/extra cooling they provide. Very simple peel and stick installation on your RAM, Southbridge, HANA or ANA chips as shown in picture gallery. The pictures below show the installation on standard 360 models and also models with the added heatpipe. Please note though, if you have a 360 model with the extra heatpipe you will need to trim the height of one of the heatsinks down to about 1/8 of an inch for proper fit under the heatpipe.