Dedicated design for the specs of 12VHPWR PCIe 5.0 Graphics Card, Connect to RTX3090ti/4090/4080/4070ti/other 40' series GPU without hassle, connecting to original 1 to 4 power adapter or PCIe 5.0 Power Cable from PSU to get a stable and reliable performance. This cable is only extension cable. Please do not plug it directly into you PSU. Please use a power supply with sufficient power according to the manufacturer's instructions. Generally, it is recommended to use a PSU of 1000W or more to match the graphics card RTX3090ti/4090/4080. The cable material is made of 16AWG tinned copper, and the terminal is made of alloy copper, providing support for a maximum output of 600W, stable performance and safety under high-load use, no frame drop , no screen flickering, and continuous power supply. The design of the male-to-female connector replaces the complex connection configuration of the original 1 to 4x 8Pin cable, which's configuration is unsightly and unsaf