This full coverage block directly cools the video cards core (GPU) graphics memory (RAM) and the 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 electroplated to prevent oxidation. A high flow design is used to allow multiple blocks to run in series. Top and bottom ports can be used to configure parallel or serial designs in multi block set ups.