Lian Li PCI Fan Speed Controller Model: PT-FN03 (Black) Fan Speed Controller, support fan x 3, using one PCI slot. According to your fan, adjust the fan speed from 20% to 100% full speed. Dimension:(W)120mm x (H)13mm x (D)35mm <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.