Notice that a heatsink and fan adds $10 to the cost and there is no eMMC included so you need to add storage to create a bootable system. Also the 2GB RAM versi

Notice that a heatsink and fan adds $10 to the cost and there is no eMMC included so you need to add storage to create a bootable system. Also the 2GB RAM version is not available/sold out and shipping is only calculated at checkout. In other words, the final real cost will be substantailly more than $39. I use a J4125 desktop for development and testing. The theory being that if there is a software problem, it is likely to be more noticeable on a lower powered computer.