Hydro-cooled and immersion-ready Bitcoin ASICs for SA operators building higher-density rigs. Our 2026 hydro stock covers the Bitmain Antminer S21 XP Hydro 473T, the S21e XP U3 Hydro 860T for maximum hashrate density per tank, and the Bitdeer SealMiner A2 Pro Hydro 500TH as the non-Bitmain alternative. Hydro units shift heat into a liquid loop instead of room air, deliver acoustic baselines well below air-cooled S21 family units, and remove most of the corrosion exposure for coastal operations. Three-phase power and a heat exchanger are required — these are not single-phase home installs. Start with our Hydro and Immersion Cooling for Bitcoin Miners in SA guide for the capex breakdown.
Want air-cooled instead? See our standard Bitcoin (BTC) ASIC miners. Diversifying away from BTC? Browse our Litecoin & Dogecoin merge-mining rigs for a different Scrypt-based revenue stream.
