Cheap And Discounts S21 Pro (234Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 234Th/s for a power consumption of 3531W. Wholesale. Buy Directly From Merchant Shop1103973056 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.