If you encounter problems in the installation, contact us and we will help you solve them. DMA bundle including: 1. Brand-new 75t board 2. HDMI Fuser 3. Macku [ About the dma card ] Dma 75t board has genuine chip.According to the configuration of the second computer, the maximum test speed can reach 8000+.It is recommended to configure the second computer with graphics card performance of rx550, 4gb or above, 960 or above, and with single core performance greater than or equal to i3, 4th generation or above [ About the fuser ] Fully automatic fusion device.Connect the cable后, adjust the resolution and hz of the two computers to be the same, they can be used.The 3* 2.1 hdmi cable guarantees the original image quality output and refuses to flash or black screen Please note: the color of the fuser is random.