I’ve been running the Antminer S21 XP (270TH/s) for about three weeks now, and I’m thoroughly impressed with the efficiency. At 13.5 J/T, it is a significant step up from the previous S19 series in terms of hashing power per watt. This was my first time ordering high-ticket hardware from Euromart Suppliers, and I was naturally a bit cautious given the volatility of the mining market. However, they handled the transaction professionally. The unit arrived in about 6 business days via DHL. The packaging was double-walled and secured with plenty of foam, which is crucial for these heavy 18kg units.