This Bitmain Antminer S19k Pro is a high-performance Bitcoin mining machine that comes pre-configured and ready to mine. Originally rated at 115TH/s, this unit has been professionally boosted to an impressive 125TH/s using Braiins OS firmware, giving you enhanced mining performance right out of the box. The unit includes a power supply unit, so you have everything needed to start mining immediately. With its robust aluminum housing and multiple cooling fans, this miner is designed for continuous operation in demanding environments. The control board features an Ethernet port for easy network connectivity, along with status indicator lights for monitoring operation. This used unit has been tested and verified to be running at the advertised hash rate, as demonstrated by the performance metrics. The Antminer S19k Pro represents a powerful solution for serious cryptocurrency miners looking to maximize their mining efficiency. Please note that Bitcoin mining hardware generates significant heat and noise during operation, so proper ventilation and placement should be considered before setup.