FIG · Equipment

Bitmain Antminer S21 XP Hyd

Name: Bitmain Antminer S21 XP Hyd
Brand: Bitmain

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Cooling

Air0 Hydro0 Immersion0

Max price

Up to$50,000

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✦ Not sure which miners to get? Our builder optimises your fleet for your budget. Try it.

FLEET BUILDER · STEP 1 OF 2

Design a fleet that fits your budget.

Set your budget, pick the coins you want exposure to, and tell us what matters most: profit today, raw hashrate, efficiency, or the newest generation. We score every miner in our live catalog against your constraints and assemble a basket you can edit before sending to checkout.

1 · Set constraints → 2 · Review & checkout

Live network BTC— · Difficulty— · Hashprice— · Catalog—

How much can you spend?

We never go over this number. Partial fills are common when budgets aren't a round price multiple.

$ USD

Which coins should you mine?

Slide each row to control how much of your budget targets that algorithm. Zero an algorithm out to skip it entirely.

Total 100%

What matters most? drag the radar OR move the sliders

Profit/$ leans toward today's best ROI. Hashrate/$ favours raw output. Efficiency picks long-term winners. Newest gen biases toward fresh hardware.

Any preferences?

Optional. These narrow the candidate pool before scoring.

Only show miners we can ship now Only liquid-cooled (hydro / immersion)

Max hardware age No limit

Exclude any manufacturers?

What's your electricity rate?

Hosting with us is fixed at $0.08/kWh, but bumping this number models a different self-hosted scenario.

$ / kWh

Inputs changed, re-generate to update ↻

Your settings Review the inputs, then generate a recommendation

Budget

$25,000

Algorithm mix

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Optimise for

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Takes about a second. You can re-generate as many times as you like.

Set your constraints above, then click Generate. We'll suggest a fleet that fits your budget, and show you exactly why each miner made the cut.

STEP 2 · YOUR RECOMMENDATION

Here's what we'd buy.

Edit any line below if you want to swap units, then send the basket to checkout.

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-10% For Preorder

[ PREORDER NOW ]

Antminer S23 Hyd — Q3 preorder open

Reserve your spot, first units ship September. Lock in our best preorder pricing while the batch is still open.

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[ SOLD OUT ]

Antminer S23 Hyd (580T)From$15,150



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All current offers

0 on offer

No SKUs are on offer right now. New deals get added regularly. Check the main catalog or chat with our team for a custom quote.

HOSTING · TIER-III FACILITY

Mining infrastructure, run for you.

We procure the hardware, ship it to our facility, rack it, monitor it, and pay rewards straight to your wallet. You watch live numbers. We keep them green.

3+ yrs

Operating

24/7

On-site engineers

$0.08/kWh

All-in power rate

WHAT YOU GET

A single price covers the whole stack.

Tier-III facility

Dual power feeds, dual WAN, redundant cooling. Physically secured: biometric entry, 24h CCTV.

All-in electricity

$0.08/kWh fixed. Covers consumption, distribution, and cooling. No surprise spikes.

24/7 monitoring

Engineers on shift around the clock. If a unit blips, it's repaired before the next reward window.

Self-custody

Rewards land directly in your wallet. We never custody your coins. Pool fees passthrough, no markup.

Live dashboard

Per-miner hashrate, temperature, share quality, daily earnings, all viewable from the moment your unit comes online.

Negative-balance free

If a coin price crashes and a miner burns more in power than it earns, we pause it. Never the other way around.

Uptime guarantee

95% SLA on air-cooled, 97% on hydro-cooled. Miss the threshold over a calendar month (excluding units in repair) and we credit the missed earnings back as mining compensation.

HOW IT WORKS

Four steps. We run all of them.

Procure

Pick from the live catalog or request a custom batch. We handle the OEM relationship + lead time.

Ship

Hardware ships direct to our facility. Tracked end-to-end in your dashboard.

Install

Engineers rack, wire and tune. You watch it come online live. Full hashrate inside 24 hours.

Mine

Rewards flow to your wallet daily. You log in, watch the numbers tick, and that's it.

Ready to mine?

Pick a miner from the catalog or talk to our team about a custom batch deal. We size the order, lock the price, and get it racked.

0 units

Is the Antminer S21 XP Hyd profitable?

The Bitmain Antminer S21 XP Hyd (473T) mines Bitcoin on the SHA-256 algorithm at 473 TH/s, drawing 5,676 W (12.0 J/TH). At $0.08 per kWh it earns about $17.76 a day, spends $10.90 of that on power, and keeps $6.87. That’s around $206 a month. It stops making money above roughly $0.130 per kWh.

That puts it #32 of 522 on daily profit across every miner we track, and #13 of 262 SHA-256 miners on efficiency. It isn’t in stock with us at the moment. It’s a hydro (water-cooled) unit, released in November 2024.

Profit at different electricity prices

Same machine, same day, different power bill. Find the row closest to what you pay.

Power price	Power / day	Profit / day	Profit / month
$0.03	$4.09	$13.68	$410
$0.05	$6.81	$10.95	$329
$0.06	$8.17	$9.59	$288
$0.08	$10.90	$6.87	$206
$0.10	$13.62	$4.14	$124
$0.12	$16.35	$1.42	$43
$0.15	$20.43	-$2.67	-$80

Other SHA-256 miners

Bitmain Antminer S23 Hyd 3U (1.16 PH)$22.41/day
Bitdeer SealMiner A4 Ultra Hydro$17.20/day
Bitmain Antminer S23e Hyd 2U (865Th)$15.88/day
Bitmain Antminer S23e Hyd U2H (865T)$15.88/day
MicroBT WhatsMiner M79S$12.30/day

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