The used and refurbished Bitmain Antminer S19j Pro, available in various versions, is delivered fully tested and dust-cleaned. It achieves e.g. approximately 96 TH/s at a power draw of approx. 2.83 kW — around 29.5 J/TH — running Bitmain's stock firmware. Installing Braiins OS+ can reduce consumption to approx. 23.5 J/TH, depending on chip quality. You can purchase it either with Braiins OS+ pre-installed for maximum efficiency from day one, or in the original Bitmain OS configuration to upgrade yourself later.
Each miner comes equipped with a 220–240 V APW12 PSU, each with two IEC‑C13 connectors, weighs approximately 17 kg, and is designed for ambient temperatures between –5 °C and 40 °C — ideal for use in a home rack, a mobile container farm setup, or as additional capacity in a data centre.
Please note: The miners are used and have been operated for varying lengths of time in mining farms. Cosmetic signs of wear are therefore present.
