I bought (off e-bay) an LCD break-out board HDMI thing for a macbook 17" LCD display I harvested. The seller has said repeatedly I need a 12V 4A power supply for it, and there is even a photo of a lab bench power supply with an X through it. They really seam to mean it, and they would know I guess. 4A seams like a lot, and why not a lab bench power supply? Any ideas or experience? [![enter image description here][1]][1] [![enter image description here][2]][2] [1]: https://i.sstatic.net/vxEYm.png [2]: https://i.sstatic.net/CUfE7.png