Antminer S19 XP Hyd 3U vs Antminer S21 XP+ Hyd

We are comparing two devices from Bitmain — models Antminer S19 XP Hyd 3U (January 2025) and Antminer S21 XP+ Hyd (July 2025). Both devices operate on SHA-256, mining Bitcoin Cash, Bitcoin, Fractal Bitcoin, BitcoinSV, Terracoin, Namecoin. The main profit focus is currently on Bitcoin Cash. The Antminer S19 XP Hyd 3U device has a single available configuration — 512Th Model Antminer S21 XP+ Hyd from manufacturer Bitmain is a unique solution with 500Th power, available in a single version. The difference in computing power is 2.34%, but the final advantage can only be shown by the energy efficiency of the equipment. Model Antminer S19 XP Hyd 3U has 20.7 j/Th, while Antminer S21 XP+ Hyd has 11 j/Th. Model Antminer S19 XP Hyd 3U 512Th has a power consumption of 10598.4 Watts, while Antminer S21 XP+ Hyd 500Th consumes 5500 Watts. Both miners belong to the Hydro series and require connection to a water cooling system. This ensures minimal noise levels and stable hashrate even in hot climates. Offers for Bitmain Antminer S19 XP Hyd 3U are temporarily unavailable, but our catalog contains many other profitable models. Compare 2 offers for Bitmain Antminer S21 XP+ Hyd from verified suppliers. Right now, the 500Th configuration can be purchased at the minimum price of 894000 RUB.