The product features of Bitmain Antminer S21 are as follows: High Hash Rate: It adopts the SHA256 algorithm and has a maximum hash rate of 200TH/s, which can calculate more hashes in a shorter time, improving mining efficiency. Low Energy Consumption and High Energy Efficiency: The power consumption is 3500W, and the energy efficiency ratio is as low as 17.5J/TH, which can reduce mining costs and improve economic benefits. Good Environmental Adaptability: The suitable maximum ambient temperature is 45??C, and it can operate around the world, with strong environmental adaptability. Stable Operation: Bitmain has optimized the cooling system of Antminer S21 to ensure that the miner can maintain stable operation under high load and extend the service life of the equipment. In addition, it is equipped with an improved power module, which provides a more stable power supply and reduces the impact of power fluctuations on mining efficiency. Intelligent Management: It supports remote management and monitoring. Users can view the device status and adjust mining parameters at any time through dedicated management software, which improves the convenience of operation. Compact Design: The size without packaging is 400?G195?G290mm, and the net weight is 15.4kg. It is smaller and lighter, which is more suitable for the deployment of multiple miners in a limited space. Convenient Network Connection: It adopts the RJ45 Ethernet 10/100M network connection mode, which is convenient for miners to connect to the network and carry out mining operations.