A：Hello there, thanks on your concept. Please get in contact with our sales supervisor through WhatsApp at +8618623251355. The board has almost everything by now installed except the CPU chip, such as the DDR and flash chips, and it is in the First firmware, which only demands to install the https://griffinvmzpz.yomoblog.com/44365158/rumored-buzz-on-antminer-k7-control-board