Category: Directory

Antminer S21 XP – Crypto ASIC Mining Hardware Review

Score: 65.5/100. Best-documented unit in the series, with officially toleranced specs confirmed via Bitmain’s own support page.

Score: 45.0/100. Worst transparency in the series; core hashrate varies by nearly 50% across resellers with no clear explanation.

Score: 61.0/100. Best raw efficiency in the series, tempered by cross-reseller weight, warranty, and voltage inconsistencies.

Score: 68.0/100. Independent multichain EVM explorer with rare, genuinely published dollar pricing, no sales call required.

Score: 55.5/100. NEAR’s grant-funded explorer, source-available under BSL 1.1, not fully open-source like NEAR’s core code.

Score: 52.75/100. Sui’s developer-favorite explorer, genuinely deep in DeFi data, but no named operator was identifiable.

Score: 51.75/100. Sui’s leading explorer, built by BlockVision, which also sells a validator service on the same chain.

Score: 69.0/100. Polkadot’s flagship explorer, funded transparently by the Treasury via public, votable governance proposals.

Score: 55.25/100. Tracking-free and open-source, built by a company facing serious, unverified 2026 allegations.