The CV1835 (Cvtek) control board is compatible with most Antminer S19 models. Available with either the original Bitmain OS or Braiins OS+. With Braiins OS+, the Antminer runs up to 20% more efficiently.
Before ordering, please ensure that your miner is compatible with Braiins OS+. Please note: Braiins OS+ can only be operated on the Cvtek board with the Farm Monitor, otherwise the Antminer will always start in Bitmain Stock OS, even if Braiins OS+ is installed. More information here.