Bitmain Antminer S19 120TH/s STABLE Hashrate @ 4000 watts - Professionally Tuned Firmware installed (ships from USA)

I currently have these units RUNNING AT MY FACILITY and can even provide video footage if you're nearby and interested in picking them up.

These units utilize advanced firmware that tunes each chip individually, resulting in a STABLE and SAFE operation. They can achieve 120TH/s at 4000 watts or less, but can easily be tuned above this threshold. 

Most users have reported achieving 120TH/s without any errors, faults, or temperature alerts, with an upgraded power supply or liquid cooling. The chip limit is not 120TH/s, as it can handle this workload without any issues even with air cooling alone. The only limiting factor is the maximum wattage of the power supply. Currently this unit is air cooled and is STABLE.