{"id":38544,"date":"2026-06-18T19:43:19","date_gmt":"2026-06-18T14:13:19","guid":{"rendered":"https:\/\/asicmarketplace.com\/?p=38544"},"modified":"2026-06-18T19:47:31","modified_gmt":"2026-06-18T14:17:31","slug":"antminer-s21-xp-hyd-vs-s21-pro-specs-roi","status":"publish","type":"post","link":"https:\/\/asicmarketplace.com\/de\/blog\/antminer-s21-xp-hyd-vs-s21-pro-specs-roi\/","title":{"rendered":"Antminer S21 XP Hyd vs S21 Pro: Full Specs, Efficiency and ROI Compared"},"content":{"rendered":"

Meet the Two Miners: A Quick Overview<\/strong><\/h2>\n

The Antminer S21 XP Hyd is a hydro-cooled heavyweight. It puts out around 473TH\/s while it pulls 5676W, so yeah, that comes to roughly 12 J\/TH, which is the main headline everyone talks about. It does need the water cooling hardware to even run properly, so it\u2019s basically pointed at organized farms and hosting setups that already have the plumbing, flow control, all that. It showed up in March 2025.<\/p>\n

Now the Antminer S21 Pro feels way more familiar, sort of plug and play, no extra hydro rig. It does 234 TH\/s, and there\u2019s also a 245 TH\/s bin available, at 3,510W, so it lands near 15 J\/TH. This one is air-cooled with four built-in fans; it tends to be louder, and cost-wise, it\u2019s also much easier on the wallet. Released in July 2024, it\u2019s been a steady favorite for home miners and smaller farms.<\/p>\n

Here’s a quick snapshot to set the stage:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Merkmal<\/strong><\/td>\nAntminer S21 XP Hyd<\/strong><\/td>\nAntminer S21 Pro<\/strong><\/td>\n<\/tr>\n
Hashrate<\/td>\n473 TH\/s<\/td>\n234 TH\/s (up to 245 TH\/s)<\/td>\n<\/tr>\n
Leistungsaufnahme<\/td>\n5,676W<\/td>\n3.510 W<\/td>\n<\/tr>\n
Effizienz<\/td>\n~12 J\/TH<\/td>\n~15 J\/TH<\/td>\n<\/tr>\n
K\u00fchlung<\/td>\nHydro (water)<\/td>\nLuft (4 L\u00fcfter)<\/td>\n<\/tr>\n
Released<\/td>\nM\u00e4rz 2025<\/td>\nJuli 2024<\/td>\n<\/tr>\n
Preis<\/td>\n$8,799<\/td>\n$2,249 \u2013 $2,399<\/td>\n<\/tr>\n
Am besten f\u00fcr<\/td>\nFarms with water cooling<\/td>\nHome & small-farm miners<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Think of it like cars. The S21 XP Hyd is the high-performance machine that needs a proper garage and a bit of know-how. The S21 Pro is the reliable daily driver you can park almost anywhere. Neither is “better” in a vacuum; they just fit different drivers, a gap that shapes the entire specs, efficiency, and ROI story below.<\/p>\n

Full Specs Compared<\/strong><\/h2>\n

First pillar: the hardware itself. Below, we lay out each machine’s complete spec sheet, then put them head-to-head in one table. This is the section to bookmark when you’re weighing the two on paper.<\/p>\n

Antminer S21 XP Hyd: Full Specs<\/strong><\/h3>\n

\"Antminer<\/p>\n

Let\u2019s start with the bigger machine. The Antminer S21 XP Hyd is built for miners who care about squeezing as much hashrate as possible out of every single watt, and who also have the cooling arrangement to actually handle it. Below is the full spec breakdown straight from the product listing.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Spezifikation<\/strong><\/td>\nDetail<\/strong><\/td>\n<\/tr>\n
Hersteller<\/td>\nBitmain<\/td>\n<\/tr>\n
Modell<\/td>\nAntminer S21 XP Hydro<\/td>\n<\/tr>\n
Ver\u00f6ffentlichung<\/td>\nM\u00e4rz 2025<\/td>\n<\/tr>\n
Algorithmus<\/td>\nSHA-256<\/td>\n<\/tr>\n
Hashrate<\/td>\n473 TH\/s<\/td>\n<\/tr>\n
Stromverbrauch<\/td>\n5,676W<\/td>\n<\/tr>\n
Effizienz<\/td>\n~12 J\/TH<\/td>\n<\/tr>\n
K\u00fchlung<\/td>\nWater (hydro) cooling<\/td>\n<\/tr>\n
Spannung<\/td>\n380\u2013418V<\/td>\n<\/tr>\n
Water flow<\/td>\n8.0 \u2013 10.0<\/td>\n<\/tr>\n
Water pressure<\/td>\n\u2264 3.5<\/td>\n<\/tr>\n
Liquid pH<\/td>\n8.5 \u2013 9.5<\/td>\n<\/tr>\n
Net weight<\/td>\n12,8 kg<\/td>\n<\/tr>\n
Dimensions (unit)<\/td>\n339 x 173 x 207mm<\/td>\n<\/tr>\n
Vernetzung<\/td>\nRJ45 Ethernet 10\/100M<\/td>\n<\/tr>\n
Operating temp<\/td>\n05 \u2013 45\u00b0C<\/td>\n<\/tr>\n
Luftfeuchtigkeit<\/td>\n05 \u2013 95%<\/td>\n<\/tr>\n
Garantie<\/td>\n365 days<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The standout here is efficiency. At about 12 J\/TH, this is one of the leanest machines you can buy. In plain terms, it does a lot more work for each unit of electricity than older or air-cooled gear. When Bitcoin’s price is soft and difficulty is high, that efficiency edge is exactly what keeps a machine profitable while less efficient units fall into the red.<\/p>\n

The hydro design is what makes those numbers, kinda, believable. Instead of fans just blowing hot air around, the S21 XP Hyd circulates liquid to pull heat away from the chips. That way, the unit can run hard without thermal throttling. and it keeps the noise way down vs an air-cooled box. Also, it\u2019s surprisingly compact for the output, because it doesn\u2019t need all those bulky fan housings, and the whole thing stays more contained.<\/p>\n

The trade-off is that you can’t just set this on a shelf and plug it in. You need a water loop, a dry cooler or heat exchanger, proper plumbing, and the right coolant chemistry (note the pH range of 8.5 \u2013 9.5). That’s why it’s aimed at farms and hosting sites rather than a spare bedroom. If you’re an individual Bitcoin-Miner<\/a> without that infrastructure, the setup cost and complexity can be a real barrier. You can look up the full product details for the Antminer S21 XP Hyd<\/a>. It comes shipped with the PSU included, and it carries a 365-day warranty, which feels really reassuring, especially since this is a big investment.<\/p>\n

Antminer S21 Pro: Full Specs<\/strong><\/h3>\n

\"Antminer<\/p>\n

Now let’s look at the S21 Pro, the machine that’s likely on more shopping lists simply because it’s easier to own. It doesn’t chase record efficiency, but it offers a strong balance of speed, simplicity, and price. Here’s the full spec sheet.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Spezifikation<\/strong><\/td>\nDetail<\/strong><\/td>\n<\/tr>\n
Hersteller<\/td>\nBitmain<\/td>\n<\/tr>\n
Modell<\/td>\nAntminer S21 Pro<\/td>\n<\/tr>\n
Ver\u00f6ffentlichung<\/td>\nJuli 2024<\/td>\n<\/tr>\n
Algorithmus<\/td>\nSHA-256<\/td>\n<\/tr>\n
Hashrate<\/td>\n234 TH\/s (up to 245 TH\/s)<\/td>\n<\/tr>\n
Stromverbrauch<\/td>\n3.510 W<\/td>\n<\/tr>\n
Effizienz<\/td>\n~15 J\/TH<\/td>\n<\/tr>\n
K\u00fchlung<\/td>\nLuft (4 L\u00fcfter)<\/td>\n<\/tr>\n
Ger\u00e4uschpegel<\/td>\n76 dB<\/td>\n<\/tr>\n
Spannung<\/td>\n220\u2013277V<\/td>\n<\/tr>\n
Net weight<\/td>\n20 kg<\/td>\n<\/tr>\n
Dimensions (unit)<\/td>\n450 x 219 x 293 mm<\/td>\n<\/tr>\n
Vernetzung<\/td>\nEthernet<\/td>\n<\/tr>\n
Operating temp<\/td>\n-20 \u2013 45\u00b0C<\/td>\n<\/tr>\n
Luftfeuchtigkeit<\/td>\n10 \u2013 90%<\/td>\n<\/tr>\n
Garantie<\/td>\n365 days<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The S21 Pro’s biggest selling point is how normal it is to run. It\u2019s basically a self-contained, air-cooled box with four fans built in, so yeah, you just plug it into power and Ethernet, aim it at the pool, and then you mine. There\u2019s no water loop, no plumbing, no coolant to manage. For most people getting started, that simplicity is worth a lot.<\/p>\n

At around 15 J\/TH, it’s still a modern, capable machine, just not as lean as the hydro model. To put it in perspective, older units from the S19 era often ran at 20\u201330 J\/TH or worse, so the S21 Pro is a big step up from anything a few years old. It’s a legitimate, current-generation ASIC miner that holds its own in a balanced power market.<\/p>\n

The catch is heat and noise. That 76 dB rating is roughly as loud as a vacuum cleaner running nonstop, so it’s not something you want in a living space. It needs solid airflow and ventilation, ideally a dedicated room, garage, shed, or hosting facility. The wide operating range (down to -20\u00b0C) does make it flexible for cooler climates. The voltage requirement (220\u2013277V) is also friendly for many home and small-business setups, unlike the higher 380\u2013415V the hydro unit prefers.<\/p>\n

You can check current pricing and stock for\u00a0the Antminer <\/span>S21 Pro<\/a> here. With a much lower entry price and a 365-day warranty, it’s an approachable way to get serious hashrate without a big infrastructure project.<\/p>\n

Head-to-Head Specs Comparison<\/h3>\n

Now that we’ve seen each machine on its own, let’s line them up directly. Here’s the full side-by-side.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Spezifikation<\/strong><\/td>\nAntminer S21 XP Hyd<\/strong><\/td>\nAntminer S21 Pro<\/strong><\/td>\n<\/tr>\n
Hashrate<\/td>\n473 TH\/s<\/td>\n234 TH\/s (up to 245)<\/td>\n<\/tr>\n
Strom<\/td>\n5,676W<\/td>\n3.510 W<\/td>\n<\/tr>\n
Effizienz<\/td>\n~12 J\/TH<\/td>\n~15 J\/TH<\/td>\n<\/tr>\n
K\u00fchlung<\/td>\nHydro\/water<\/td>\nLuft (4 L\u00fcfter)<\/td>\n<\/tr>\n
L\u00e4rm<\/td>\nSehr niedrig<\/td>\n~76 dB (loud)<\/td>\n<\/tr>\n
Spannung<\/td>\n380\u2013418V<\/td>\n220\u2013277V<\/td>\n<\/tr>\n
Gewicht<\/td>\n12,8 kg<\/td>\n20 kg<\/td>\n<\/tr>\n
Abmessungen<\/td>\n339 x 173 x 207 mm<\/td>\n450 x 219 x 293 mm<\/td>\n<\/tr>\n
Operating temp<\/td>\n5 \u2013 45\u00b0C<\/td>\n-20 \u2013 45\u00b0C<\/td>\n<\/tr>\n
Ver\u00f6ffentlichung<\/td>\nM\u00e4rz 2025<\/td>\nJuli 2024<\/td>\n<\/tr>\n
Preis<\/td>\n$6,779<\/td>\n$2,249 \u2013 $2,399<\/td>\n<\/tr>\n
Setup difficulty<\/td>\nHigh (needs water loop)<\/td>\nLow (plug and play)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

A few things jump out when you see them together.<\/p>\n