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Bitmain Antminer Z15 (420 kSol/s)
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Bitmain
Bitmain Antminer Z15 - 420 kSol/s Zcash Miner Equihash Mining
Bitmain Antminer Z15 - detail view 1 - Zcash miner
Bitmain Antminer Z15 - detail view 2 - Zcash miner
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Bitmain Antminer Z15 (420 kSol/s)

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Available at short notice
No longer available
Only used available
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Leasing from €10,000 (only in Germany)

Technical data

ManufacturerBitmain
ModelAntminer Z15
AlgorithmEquihash
CoinsZcash
Hashrate420 kSol/s
Power consumption1510 watts
Efficiency3.6 J/kSol
CoolingAir cooling
Dimensions (W x D x H)133 x 245 x 290 mm
Weight5.9 kg
Noise level72 dB

Description

Bitmain presented the Antminer Z15 in June 2020, a Zcash miner for the Equihash algorithm. On Equihash it reaches 420 kSol/s. The housing weighs 5.9 kilograms and is cooled by two fans; power comes from an external power supply. It is no longer available.

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Performance of the Antminer Z15

From 1,510 watts the Z15 gets its 420 kSol/s, so 3.6 joules per kSol; power draw and efficiency can deviate by up to five percent on an individual machine.

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Bitmain built the Z15 in three versions, all at 1,510 watts and in the same housing: the Z15 with 420 kSol/s, the Z15j with 320 kSol/s and the Z15e with 200 kSol/s. Per kSol they need 3.6, 4.7 and 7.5 joules respectively.

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Design, connection and cooling of the Antminer Z15

At a size of 133 x 245 x 290 mm the Z15 weighs 5.9 kilograms. Two fans keep it cool, and under load it comes to 72 decibels. Packed, the Z15 measures 331 x 234 x 391 mm at 6.6 kilograms; on the network side it has RJ45 at 10/100 Mbit/s.

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The Z15 takes its power as a DC voltage of 11.6 to 13.0 volts from an external APW7 power supply, connected via ten PCIe plugs. The AC side of the power supply must be reliably grounded. The network connection has to be wired, to a router or switch without PoE.

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Permitted are 0 to 40 degrees ambient temperature, 10 to 90 percent humidity without condensation and an altitude of up to 2,000 metres. It runs best at 25 to 30 degrees and below 65 percent humidity.

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Bitmain still services the Z15; for its predecessor, the Z11, Bitmain already ended service in November 2020.

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Comparison with the previous and next generation of the Antminer Z15

The predecessor of the Z15 is the Antminer Z11, and the Z15 was followed by the Antminer Z15 Pro and the Antminer Z15K. The machines compared:

  • Antminer Z11: 10.5 J/kSol (135 kSol/s at 1,418 watts)
  • Antminer Z15: 3.6 J/kSol (420 kSol/s at 1,510 watts)
  • Antminer Z15 Pro: 3.31 J/kSol (840 kSol/s at 2,780 watts)
  • Antminer Z15K: 4.73 J/kSol (525-565 kSol/s at 2,483-2,672 watts)

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Compared with the Z11, the Z15 brought a good three times the hashrate and needs only about a third of the electricity per kSol. In 2023 the Z15 Pro followed with twice the hashrate and slightly better efficiency. The Z15K from 2026 has the same outer dimensions as the Z15 and gets a quarter to a third more hashrate out of them, but needs more electricity per kSol.

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Verdict: Zcash mining with the Antminer Z15

After all these years the Z15 still runs profitably and robustly. We can genuinely recommend it; it is a really good machine.

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Anyone who still has a Z15 today can keep mining Zcash profitably with it, and it keeps running reliably.

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What daily yield Zcash brings at your electricity price is calculated by the Zcash mining calculator. The cockpit keeps price and Zcash network hashrate current, as well as the Zcash pools; the miner comparison sets it against other coins.

How the Purchase Process works

1
Request & Quote
You send us your inquiry, we come back with a binding quote and advise you on the right performance level. Once you confirm, we reserve the units.
2
Shipping & Import
Freight from Hong Kong, customs clearance and import VAT are handled by us. Before forwarding, we test every unit - you receive the machine cleared, taxed and tested.
3
Delivery or Hosting
We deliver to you, fully insured - or the machine goes straight to one of our hosting sites and is operated there under ideal conditions.
4
Commissioning
Pool, firmware, network: we set everything up together with you until the miner runs. We remain your point of contact - including in any warranty case.

Warranty provided by our German Company

When you buy mining hardware via Cryptohall24, you get a guarantee of 12 months In contrast to manufacturer warranties, our warranty only begins when the hardware is sold to our customers and not as soon as it leaves the factory. Since there can often be several months between production and sale in the mining market, our customers often have a longer effective protection than with the pure manufacturer's warranty.
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Optionally, the hardware can be added to insured for up to 36 months become.

Cryptohall24 employee providing technical support on an ASIC miner - Cryptohall24

Why Customers buy Miners from Cryptohall24

4.8
(148)
Legally secure corporate structure according to German law
German contact person with personal support
Transparent prices with no hidden fees - with 12 months of warranty
Professional advice about mining hardware, hosting and profitability
Support with structural, tax and legal matters
Service Excellence through long-term partnership
FAQ
Do you have any questions?

How does buying a miner work?

The process is clear and done in a few steps: you enquire about the device you want, you receive a written quote with the final price from us, and as soon as you accept it, we issue the invoice. After full payment is received, we trigger the order and the hardware is on its way to you.

That way you know where you stand at every point - from quote to delivery, a continuously supported process with a personal contact.

How can I pay?

You can pay conveniently by bank transfer in euros, in crypto (Bitcoin or USDC) or in cash against a receipt.

As throughout our business, payment is in advance: we trigger the order as soon as payment has been received in full. That keeps the process clean and predictable for both sides.

Are there discounts for larger quantities?

Yes, discounts are possible for larger quantities. How large they are depends on several factors - the device, the quantity, the delivery location and the respective procurement conditions.

That's why we state the right price best directly in an individual quote. Just tell us the model and the quantity you want and we'll work it out for you.

What is included in the delivery?

On modern ASIC miners the power supply is built firmly into the machine and is therefore always included - it does not have to be bought separately. An external power supply only existed with very old first-generation models.

So you receive a ready-to-run device. Whatever else specifically belongs to the respective product is stated in the product description; in case of doubt we clarify it in the quote.

Is the miner in stock and how quickly is it delivered?

You can see availability directly on the product; in case of doubt we confirm it in the quote. The majority of our hardware is located in our main warehouse in Hong Kong and is shipped from there directly to your destination.

Individual devices are in stock in Germany (Hamm) - those reach you particularly quickly. We state the concrete delivery date bindingly in the quote, as soon as device and destination are clear.

How is it delivered - internationally and with customs clearance too?

We deliver worldwide. We handle the shipping and the complete import processing including customs clearance for you - you don't have to deal with it yourself. We state the shipping costs transparently in the quote.

That way the miner arrives ready to use at your place or the desired site. On request we deliver directly to our hosting, then the device goes into operation without a detour.

What requirements do I need for operation?

To operate at home or in your own business you mainly need three things: a suitable power connection (ASIC miners draw several kilowatts continuously, large devices often three-phase power), enough space with ventilation, and a stable internet connection via LAN.

On top of that come noise and waste heat: air-cooled devices are very loud and heat the room noticeably. Anyone who doesn't meet these requirements usually has the miner hosted - then we take care of power, cooling and operation.

How do I set up the miner and can I get help?

Commissioning is straightforward: connect the device, plug it into the network and configure it to your mining pool and wallet. After that the miner runs around the clock.

We don't leave you alone with it - we support you with setting up pool and wallet and the first steps, even without prior experience. Your personal contact is available for questions.

What warranty do I have on the device?

As a German company we offer you 12 months' warranty on your hardware as standard.

Alternatively, you can exclude the warranty in the purchase contract and handle it via the manufacturer's warranty - then the device becomes cheaper. We offer both routes; which one makes sense for you we clarify in the quote.

Can I have this miner hosted directly instead of running it myself?

Yes. You can buy the device from us and have it hosted in the same step - then it runs at a site with low-cost electricity, without noise and heat at your home.

For many this is the most economical way. You can read how hosting works on our hosting page.

As a business customer, can I cancel or return?

We sell our devices to businesses (B2B). A statutory consumer right of withdrawal therefore does not apply in B2B business; in addition, we procure and import the hardware specifically for your order.

So you buy in a targeted and binding way. That's exactly why we calmly clarify the right device for your project before the quote - so you make the right choice from the start. If you have questions before buying, we are always reachable.

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