Bykski Full Coverage GPU Water Block and Backplate for GIGABYTE Radeon RX 6600 XT GAMING OC 8G (A-GV6600XTGMOC-X) Flow Indicator The micro jet channels are

The micro jet channels are 0

Dimensions

Mount Hole: 18

All the film left from your previous coolant built up inside

Bykski Full Coverage GPU Water Block and Backplate for GIGABYTE Radeon RX 6600 XT GAMING OC 8G (A-GV6600XTGMOC-X) Flow Indicator The micro jet channels areThis full coverage block directly cools the video cards core (GPU), graphics memory (RAM), and voltage regulator modules (VRM). By directly cooling these components, you can achieve great temperatures along with the ability to reach higher overclocks or extend the overall lifespan of your card by running at below factory temps. The block is constructed of high purity copper that is nickel electroplated to prevent oxidation. A high flow design is used