Antminer S21 Pro 245 TH Installation Tutorial – Complete Guide
14 Aug 2025
The Antminer S21 Pro 245 TH ( see ) is a high-performance ASIC for Bitcoin mining . This guide explains how to safely install it at home.
Prepare the location
- Power supply 220–240V (C20 plug) on dedicated line.
- Effective ventilation, ambient temperature < 35°C.
- Stable Ethernet network connection.
Branching & Networking
- Plug in the power supply and the Ethernet cable.
- Turn on the miner, locate the IP address via the router/network scanner.
Interface access & security
Log in with root/root , and immediately change the password .
Configure the BTC pool
- Tab Miner Configuration → Pool URL, wallet and worker .
- Save, restart if prompted.
Optimizations & maintenance
- Performance Mode (245 TH/s) vs. Eco Mode.
- Monitor temperatures (< 80°C), clean the fans every 2–4 weeks.
- Regular firmware updates.
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