








❄️ Cool smarter, not harder — the thermal putty pros swear by!
UPSIREN Ultra 16.8w/mk Thermal Putty is a premium, high-conductivity thermal interface material designed to replace traditional thermal pads up to 3mm thick. With a thermal conductivity over 16.8 W/mK—three times that of common pads—this non-electrically conductive, heat-resistant putty ensures rapid cooling for GPUs, memory chips, and other critical electronics. Its moldable, sticky texture allows precise application, while its durability supports over 1000 days of reliable use at temperatures up to 250°C, making it a top choice for professionals seeking to optimize thermal performance and extend hardware lifespan.
| ASIN | B0F6V5CZXX |
| Are Batteries Included | No |
| Best Sellers Rank | #17,200 in Computers ( See Top 100 in Computers ) #19 in Thermal Pads |
| Brand | UPSIREN |
| Customer Reviews | 4.4 4.4 out of 5 stars (78) |
| Date First Available | 17 August 2025 |
| Item Weight | 145 g |
| Manufacturer | UPSIREN |
| Manufacturer reference | UX PRO |
| Package Dimensions | 15.8 x 7.5 x 3.4 cm; 145 g |
N**L
Expensive and difficult to use but it works
i have years of experience refurbrishing cards, this product is very difficult to manage and to apply. online there are some tutorial bun honestly i don't raccomend to spread things everywhere without any minimum of diagnostic with your fingers. Be informed that 20g are not enogh to cover the VRMs and ram chips of a full card. (in my case a 3090) i raccomend to use oven paper and place a specific amount on it and roll them since u don't reach a proper thinkness of each related thermal pads you are going to replace and cut with a cutter the portion that u need (is really time consuming but the final result will be better and without messing the pcb). Spreading the putty without a control is going to cause imperfection causing high pressure spot and bending the pcb, since we don't want to destroy our card pay attention.
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