Thermal Grizzly has introduced its Mycro Pro RGB CPU water blocks for AMD and Intel platforms, bringing a new option for users building custom liquid cooling systems with RGB lighting and fine-tuned thermal performance. The lineup includes the AM5 Mycro Pro RGB and the Intel 1851 Mycro Pro RGB, both built on the same design used in the company’s Mycro direct-die coolers, which focus on efficient heat transfer and steady coolant flow.
The new blocks use a nickel-plated copper cold plate paired with tempered acrylic glass, an acrylic jet plate, and an anodized aluminum cover. Thermal Grizzly says the cold plate uses 0.2 mm slot and fin widths, with 68 microfins on the AMD model and 70 on the Intel version. This design increases surface area and improves heat dissipation, while standard G1/4 threads ensure compatibility with most custom water cooling setups.
Integrated filter and cooling design
One key addition is a fine-mesh filter placed at the inlet, which captures particles from the loop before they reach the microfins. This helps maintain coolant flow and delays clogging, especially over long-term use, and users can remove and clean the filter when needed.
The integrated filter captures particles present in the water-cooling loop. These may include production residues, for example from radiators.
Thermal Grizzly also shared internal test data, showing the Intel 1851 block running an Intel Core Ultra 9 285K at 260 W with an average temperature of 38.9°C, while the AM5 version handled a Ryzen 9 9900X at 230 W with a recorded 77.1°C. These results come from the company’s own testing setup.
Compatibility and pricing
The AM5 model supports both AM5 and AM4 sockets, while the Intel version works with LGA1851 and remains compatible with LGA1700. However, the AM5 block does not support the AM5 High Performance Heatspreader, while the Intel version works with the LGA1700 heatspreader.
Thermal Grizzly has priced the AM5 Mycro Pro RGB at €139.90, while the Intel 1851 version starts at €144.90.
