Excellent customer service, frequent communication, and iceriver ks3m miner appeared precisely like what was proven in the pictures. will certainly order from them yet again. OEM (initial devices producers) replacement built-in furnace controls act as replacements for existing furnace control boards. Beta Variation Disclaimer: This firmware is in beta screening. https://iceriver-ks3m-price23456.full-design.com/the-definitive-guide-to-iceriver-ks3m-72051075