Bitmain Antminer Preorders

What you are actually agreeing to

A delivery window, not a date. Batch months slip. Plan on the late end of any range you are given and you will rarely be disappointed.

Tomorrow’s difficulty, today’s price. This is the real risk and the one people underweight. Bitcoin network difficulty rises over the months between order and delivery, so the machine will earn less on its first day of operation than the same machine would earn today. Any calculation you run now is an overestimate by definition. Run your numbers against a difficulty assumption, not against today’s figure.

Specifications that are not final. Announced hashrate and efficiency for unreleased models are manufacturer targets. They usually land close, and occasionally they do not. We will not restate an unreleased spec as though we have measured it, because we have not.

What the three machines here actually are

The page above is about the shape of a preorder rather than the hardware, so here is the hardware. The Antminer S23 318T Mix is the air-cooled one: 318 TH/s against roughly 3,498 W, which is about 11 J/TH, on a 200–240 V circuit behind dual high-static-pressure fans at up to 75 dB. The S23 Hyd 580T Mix is the hydro machine of the same generation: 580 TH/s against roughly 5,510 W, about 9.5 J/TH. Both of those are Bitmain’s published figures for machines nobody here has put a wattmeter on. The S19 XP+ Hyd 3U 558T is a different animal: 558 TH/s, but out of about 10,600 W, which is 19 J/TH and two generations behind the other two.

Two of these three need three-phase power

This is the constraint that decides the shelf and it is on none of the tiles. Only the S23 318T is a single-phase machine — 200–240 V, about 14.6 A at 240 V, which a dedicated 20 A circuit carries with room to spare under the 80 per cent continuous-load rule. Both hydro machines are rated AC 380–415 V three-phase on Bitmain’s own published figures. That is a service, not an adapter: nothing turns one 240 V circuit into it, and if the building does not already have three-phase then the electrical work is a longer lead time and a bigger line item than the deposit.

Balanced across three phases at 400 V, at the near-unity power factor these supplies run at, the S23 Hyd draws about 8 A a phase and the S19 XP+ Hyd 3U about 15.3 A. At the bottom of the rated range, 380 V, those become about 8.4 and 16.1 A. Take them to an electrician as the opening of a conversation about conductors, breaker type and distance, not as a design.

The S19 XP+ Hyd is not a next-generation machine

It is easy to read 558 TH/s as the biggest number on the shelf and stop there. Efficiency is what a preorder is meant to be buying, and at 19 J/TH this is an S19-generation part in a 3U hydro chassis, not an S23. Run the division the rest of this site uses — break-even rate = hashprice ÷ (24 × the machine’s J/TH) — against the hashprice we derived on 9 August 2026, $32.18/PH/day, and it covers its own electricity up to about 7.1¢/kWh. Bitmain’s announced figures put the two S23s at about 12.2¢ and 14.1¢ on the same day. That spread is what waiting for a crate is actually buying; the hashrate number is not.

Today’s figures, tomorrow’s network

Every cent figure above is worked against one day’s hashprice, and hashprice — what a petahash of work is paid before you pay for power — falls as network difficulty rises. Our derivation is 9 August 2026: difficulty 127.48 T against a network near 912 EH/s. A January-batch machine meets whatever the network is in January, not that, which is exactly why any calculation run today is an overestimate. We will not forecast it for you and you should be wary of a seller who does. What we will do is re-run the arithmetic at your own power rate on the day you are deciding.

When preordering is the right call

When you have power capacity coming online on a known schedule and need machines to meet it. When the model is genuinely a generational step and buying current stock means replacing it within a year anyway. When allocation is tight and waiting for retail availability means paying more later.

When it is not

When you want to start mining now — buy in-stock new machines or used hardware instead and be hashing this month. When your site is not built. When the deposit is capital you cannot have tied up for a quarter.

Before you commit

Ask us for the current lead time, the deposit and balance structure, what happens if the batch slips, and whether the unit is air, hydro or immersion — several preorder models are hydro and need a loop ready on arrival. We will give you the realistic answer rather than the optimistic one.

See all miners for hardware available now.

Three machines, none of them in hand. The S23 318T Mix and the S23 Hyd 580T Mix are the S23 generation; the S19 XP+ Hyd 3U 558T is a hydro S19 XP+ in 3U. Every figure attached to these is a manufacturer target, not a measurement we have taken, and difficulty rises between the day you order and the day the unit ships — which makes any calculation you run today an overestimate by definition.

A pre-order is the capital-versus-efficiency question in its purest form: pay more now for a machine that does not exist yet, or buy in-hand hardware that is less efficient and much cheaper. Antminer S19 XP vs S21 Pro works that trade with payback periods rather than opinions, and it is the same arithmetic that decides whether waiting for an S23 is worth it.