1. Strong compatibility: This 12VHPWR 450W 12+4PIN PCI-E 5.0 steering head is designed specifically for RTX 4090 4080 4070 Ti 3090 Ti graphics cards. Please note that the graphics card brands applicable to the adapters in different directions may be different! 2. Up to 450W Output: This adapter supports for RTX4090 with a maximum output of 450W. Long term use of power output exceeding 450W may cause equipment damage. 3. 180°turn design: Connect the power cord and GPU interface, without causing pressure on the GPU graphics card interface, and ensure long-term stable use. 4. High Quality Material: ABS rubber shell, PCB board, all copper tin plated, with good conductivity, high fire resistance rating, anti-aging, easy to plug and unplug, thickened and thick copper foil to ensure the stability of high-power. 5. Warm Tips: Please ensure that the adapter is fully inserted into the GPU and there should be no space. It is not recommended to use graphics cards with overclocking power