Used L3+ / L3++ Bitmain Antminer Control Board with HiveOS Overclock software pre-installed! Condition is great. clean and tested.

L3+/++ Miner with HiveOS software pre-installed. https://hiveon.com/asic/l3/

Hive OS offers the standard504MH@660W and unlocks the additional overclocking speeds:

560MH@850W;

610MH@970W;

645MH@1050W;

680MH@1200W and 

720MH@1300W