Dear Ahmad,
Sorry that we do not have the water block which fits for
Gigabyte GeForce RTX 3080 extreme.
We only have the water block for Gigabyte GeForce RTX 3080 GAMING OC, as the following link. Any questions, feel free to contact us.
https://shop.bitspower.com/index.php?route=product/product&product_id=8025&search=3080