A:Hi, thanks to your information. You should get in touch with our sales supervisor via WhatsApp at +8618623251355. The board has anything already set up except the CPU chip, including the DDR and flash chips, and is also during the Original firmware, which only needs to setup the CPU to https://holdensmxkv.fare-blog.com/37776971/facts-about-antminer-l9-control-board-revealed