Bitcoin Mining Machines

🔹 Antminer T21 – 190 TH/s (Air-cooled) Hashrate: 190 TH/s Power consumption: ~3,610 W → ~19 J/TH efficiency asicminerdepot.com+14cryptotech.eu+14mbminers.com+14 Operational voltage: 380–415 V, 3-phase oemminer.com+1mbminers.com+1 Noise level: ~75–76 dB, 4‑fan cooling cryptotech.eu Dimensions: ~400 × 195 × 290 mm, ~16.4 kg asicminerdepot.com+11cryptotech.eu+11oemminer.com+11 Estimated daily profit: ~$5.22/day (at typical rates) asicminervalue.com+2miningnow.com+2reddit.com+2     Pros: Excellent efficiency at ~19 J/TH, solid ROI if you have industrial-grade power and infrastructure.Cons: Requires 3-phase input; loud and generates lots of heat—best suited for industrial or farm settings. 🔹 Antminer S21 – 200 TH/s (Air-cooled) Hashrate: 200 TH/s Power: ~3,500–3,550 W → ~17.5–17.75 J/TH reddit.com+15mbminers.com+15antminerchina.com+15xn--bitmai-ufc.com+3shop.leedminer.com+3asicminervalue.com+3 Cooling: Dual-fan or 4‑fan air cooling, 75 dB noise oemminer.com+2cryptotech.eu+2antminerchina.com+2 Power input: Single-phase 220–240 V cryptotech.eu+15antminerchina.com+15mbminers.com+15 Size/weight: ~400×195×290 mm, ~14–16 kg wyminer.com+10xn--bitmai-ufc.com+10mbminers.com+10 Price range: Approx. $1,950–$3,350 depending on vendor xn--bitmai-ufc.com Low‑power mode option: Around 160 TH/s at ~2,600 W mbminers.com+10reddit.com+10techradar.com+10 Pros: Highest single-phase air-cooled hashrate available; no need for three-phase power which is great for home labs or small ops.Cons: Heavy noise/heat; still requires proper electrical setup and ventilation. 💬 Community Insights “Low power mode hashes at 160 TH and uses 2600 watts.” reddit.com“Just installed S21 200 TH… added a 240 V circuit… Running it in Low power mode.” reddit.com+13reddit.com+13reddit.com+13 These indicate users frequently use the S21 in “low power” mode to manage heat and noise, especially in non-industrial environments. ✅ Which to Choose? Use Case Recommend Why Industrial farm / 3-phase setup Antminer T21 High efficiency (~19 J/TH), robust build Home or small setups w/ single-phase power Antminer S21 Highest available TH/s on single-phase; low‑power mode helps manage heat

High-End / Next‑Gen (500 TH/s and above) Bitmain Antminer S21e XP Hyd 3U: 860 TH/s, hydro-cooled, ~11,180 W, around $17,210 Bitmain Antminer S21 XP+ Hyd (500 TH/s): ~500 TH/s, 5,500 W, around $12,700 2. Mid‑Range (200–400 TH/s) Auradine Teraflux AH3880: 600 TH/s, ~8,700 W, $7,800 MicroBT WhatsMiner M66S++: 356 TH/s, ~5,518 W, $8,660 Canaan Avalon A1466: ~150 TH/s, ~3,230 W, $3,500 3. Accessible Air‑Cooled (100–200 TH/s) Antminer S19j Pro: ~100 TH/s, ~2,950 W, $1,149–$2,063 WhatsMiner M30S++: ~100–112 TH/s, ~3,472 W, $1,569–$4,175 (varies by vendor) Antminer S19k Pro: ~120 TH/s, ~2,760 W, $1,699 4. Entry‑Level / Used Units Used M30S (88 TH/s): ~$500 for a working used unit Entry-level new ASICs available from ~$1,000 – though lower hash rates and efficiency https://darkexplorer.link/product/microbt-whatsmin…machine-for-sale/   🧭 What It All Means High-end units (>$8,000) offer top performance and best efficiency—the choice for large-scale miners with infrastructure. Mid-range miners ($3,500–$8,600) strike a balance between cost and output, ideal for serious but not industrial deployments. Budget air-cooled miners ($1,000–$2,500) suit smaller setups or home miners, though electricity costs may impact ROI significantly. Second-hand miners (<$1,000) are cost-effective but come with potential reliability and longevity risks.