Ofen 2 Color:White The CV1835 (CVTech) control board

The CV1835 (CVTech) control board is compatible with most Antminer S19 models

resulting in less noise and longer durability

Hashrate: 105–120 TH/s

Hashrate: 96 TH/s -104 TH/s

The control board C41 is suitable for the Antminer S9 and S9i

Ofen 2 Color:White The CV1835 (CVTech) control boardThe 21energy Ofen 2 is perfect for you, if you want to heat your home and earn Bitcoin at the same time. Imagine having a heater that not only keeps your home warm, but also provides you with additional income. The Ofen 2 offers a heat output of up to 1,000 watts and can heat rooms up to 50 m. It runs whisper quiet under 35 dB on the lowest setting, 40 dB on the medium setting and 45 dB on the highest setting.