Sonnet Technologies GPU Card Auxiliary Power Cable Set for 2019 Mac Pro, 2-Pack

Purpose-Built Power Cables for 2019 Mac Pro

This two-cable set supplies auxiliary 8-pin to 8-pin power connections specifically for the 2019 Mac Pro when running an AMD Radeon RX 6900 XT graphics card. It addresses the workstation's unique internal power delivery requirements for high-end GPU upgrades. The cables are engineered to fit the Mac Pro's specific architecture and power distribution design.

Interface and Compatibility Constraints

The set includes one cable with a PCIe interface and one with a Thunderbolt interface, matching the distinct auxiliary power headers found in the 2019 Mac Pro. Both cables are required simultaneously to deliver sufficient current to the Radeon RX 6900 XT. This configuration works only with the 2019 Mac Pro chassis and this specific graphics card model; it does not adapt to other systems or GPUs.

Upgrading from Insufficient Internal Power

The cables replace the absent or inadequate factory auxiliary power links that prevent the Radeon RX 6900 XT from operating in a 2019 Mac Pro. The upgrade is worth it when installing this specific GPU into this specific workstation, as the card cannot function without both auxiliary connections. Buyers who need to power a different graphics card or a different Mac model cannot use this set.