This product is not eligible for discounts. Features: Easy design, just change the sub-board. Other products make you wonder where to put the jumper wires. This one eliminates that, allowing even electronics beginners to simply connect the jumper wires without confusion. Anyone can replace it with just a soldering iron. Made by Retro Core Plus ＜When replaced＞ Vertical stripe noise reduction Clearer video Pseudo-stereo AV terminal TV connection possible Operation lamp lights up ＜Set Contents＞ Sub-board USB power cable AV cable (approx. 3m) Installation manual USB power is required. It has been found that recent inexpensive USB power supplies can cause horizontal stripe noise on the screen. If you are concerned about this noise, please purchase a new USB power supply. How to distinguish between early and late models: Early models have the main power switch lead coming from the sub-board. Late models have the main power switch lead coming from the main board. Please ask any questions in the comments.