It’s a stable choice for learning the ropes or for scaled-down operations. Just ensure that you’re buying from a dependable spot like AMSFA, in which you know you’re having tested gear and very good support. Getting a good deal with a Z15 suggests you can start mining ZEC and also https://flagma.hu/en/buy-second-hand-asic-bitmain-antminer-z15-pro-o1717767.html