THIS IS A FRESH COOL-IT ECO 2, HAS 2 120 MM FANS FOR A PUSH AND PULL ARRANGEMENT. HAS INTEL LGA /1156 / 1 HARDWARE I BELIEVE AMD AM2/AM3 TO. HAS THERMAL COMPOUND. WORKS FANTASTIC SIMPLY DO N'T REQUIRED IT CAUSE I OFFERED MY RIG WITH STOCK COOLER THIS WAS ACQUIRED LATELY SO IT STILL HAS A LONG LIFE LEFT RAN ON A INTEL LGA775 OUTLET, CORE 2 QUAD Q9650 AND WORKED EXCELLENT AND IF YOU UNDERSTAND REGARDING THE Q9650 IT RUNS VERY WARM. THIS COLDER KEPT IT NICE AND COOL. WELL IF INTERESTED CALL OR CONTENT 2ONE $50 IF POST IS UP THEN IT IS STILL AVAILABLE.