Our product allows you to seamlessly connect AVID Hdx cards to Mac Pro 2019+ pcie slots . Our design is made with high-quality materials and every cable is voltage tested before packaged. This cable is ideal for those in need of a quick and easy solution to power pcie cards for the Mac Pro 2019+. Our patented cable Is the only cable on the market for Avid HDX cards with a 3 in 1 complete wire solution. - Upgrading to a Mac Pro 2019+ - The old 6 pin pcie cables are not compatible with the 2019+ systems. Currently the solution is to purchase hundreds in adapters from multiple company's. Our patented design is the solution to this compatiblity issue. - Purchasing used HDX cards - Most used cards do not include compatible cables Ebay, Reverb or Vintage King shoppers will find an easy solution with our 3 in 1 cable. Disclaimer: While working with computer components, there is a high risk of electrical issue that could happen. Something as simple as static electricity could cause a motherboard or other components to go bad or fail. Knowing the high risk and sensitivity of working mechanically with computer components, you as the consumer understand that you are responsible and take all creditability if any issue were to happen during installation. We do not grantee this will solve your problem or adapt properly with every pcie card or system. We are not responsible for your computer and recommend you have a certified professional hired for this installation. Once the packing seal is broken on this item we do not take returns. The purchase of this item is your signature to this disclaimer and holds you accountable for any and all concerns and issues you may have with installation or performance. .