Antminer S21 vs Antminer S23e Hyd 2U

We are comparing two devices from Bitmain — models Antminer S21 (February 2024) and Antminer S23e Hyd 2U (April 2026). Both devices operate on SHA-256, mining Bitcoin, Fractal Bitcoin, Bitcoin Cash, BitcoinSV, Terracoin, Namecoin. The main profit focus is currently on Bitcoin, Fractal Bitcoin. The Antminer S21 device from Bitmain is available in a wide range of powers. Versions from 151Th to 200Th are available. Bitmain Antminer S23e Hyd 2U is released in a single version with 865Th. The difference in computing power is 76.88%, but the final advantage can only be shown by the energy efficiency of the equipment. Model Antminer S21 has 17.5 j/Th, while Antminer S23e Hyd 2U has 10 j/Th. Model Antminer S21 200Th has a power consumption of 3500 Watts, while Antminer S23e Hyd 2U 865Th consumes 8650 Watts. There is a fundamental difference in cooling type: Antminer S21 uses Air, while Antminer S23e Hyd 2U operates on Hydro. 26 ads found for Bitmain Antminer S21. The current cost for 151Th power is from 114 RUB. Both new and used devices are available. Our platform has 4 offers of Bitmain Antminer S23e Hyd 2U from different companies, available both in stock and on order. The best price for the 865Th version is currently 845000 RUB.