Bitcoin price hikes send Bitcoin mining rig prices soaring in Shenzhen Huaqiangbei 🚀 Antminer S21 335T is selling for $5,600, up 30%. High-performance models are sold out. Buyers from Russia, the US, and Canada are increasing their profit margins with lower electricity costs. Experts predict that we are at the beginning of a bull market and device prices could rise even higher 📉