Premium-grade thermal compound for optimal heat-transfer from the CPU or GPU to the heatsink; second generation of Noctuas award-winning NT-H1 AM5 edition with NA-TPG1 thermal paste guard that keeps your AM5 based AMD Ryzen CPU clean by preventing thermal paste build-up in the cut-outs of the heatspreader Easy to apply (no need to spread before heatsink installation) and easy to clean with supplied NA-CW1 cleaning wipes Trusted Noctua quality with excellent long-term stability: recommended storage time up to 3 years, recommended usage time on the CPU up to 5 years 3.5g pack for around 3-20 applications (depending on CPU size, e.g. ~3 applications for TR4, ~15 for AM4/AM5 or LGA1700, ~20 for LGA1200); includes 3 NA-CW1 cleaning wipes