Thermalright VRM-R1 vga memory cooler , air flow through side panel chassis fan - copper base + aluminum fin with 2 heatpipes ; fanless design ; support optional 80mm fan , 160g , support upto ATi HD4870/4890 ; compatible with HR-03 Rev.A / HR-03 GT / V2 / T-Rad2 / T-Rad2 GTX