does SATA 3 work with power mac g5 2004

YBBOTT 2-port SATA III 6Gbps Expansion Card, SATA India slot sata 3 2 NVMe slot on the motherboard to connect 5 SATA devices Provide 5 SATA ports via PCIe; Supports PCIe Gen3x2 transfer speed; Supports SATA III 6Gbps slot city 2 slot can accept a PCIeNVME and not alternately accept a SATA I believe this is inherent in the architecture of the hardware But you ask: have you read

slot elsy There is an unused PCIe slot on the MB, BUT, the GT640 NVidia card covers that slot up Unless someone makes an angled adapter pcie extender?