Antminer S23 XP Hyd starts shipping: what 8.9 J/TH buys at a $33 hashprice

Bitmain says deliveries of the Antminer S23 XP Hyd start in November 2026 and run through January 2027. The hydro-cooled unit is rated at up to 600 TH/s at 8.9 J/TH, the lowest J/TH rating among Bitcoin ASICs announced so far. It arrives at an awkward moment: hashprice has slipped to about $33.18 per PH/s per day while Bitcoin difficulty sits at 148.36T, its highest level since November 2025, after two back-to-back increases.

Where the XP Hyd sits in the S23 family

Bitmain added the XP Hyd and the rack-mounted S23e U2H at WDMS Hong Kong in late August. Both were sold as futures with November delivery. Older S23 versions are already sold out on Bitmain's own shop and are now mostly found through distributors. Figures below are Bitmain's list specs and prices from early September 2026:

• S23 XP Hyd: 600 TH/s, 5,340 W, 8.9 J/TH, $15,300 (about $25.50 per TH).
• S23e U2H: 865 TH/s, 8,650 W, 10.0 J/TH, $9,515 with a promo price of roughly $11 per TH.
• S23 Hyd: 580 TH/s, 5,510 W, 9.5 J/TH, $17,400 list.
• S23 Hyd 3U: 1,160 TH/s, 11,020 W, 9.5 J/TH, $34,800 list.
• S23 (air): 305 TH/s, 3,355 W, 11.0 J/TH, $9,150 list.

What today's hashprice means for each model

We took the $33.18 hashprice and each machine's rated hashrate and power draw to find the electricity price at which a unit only covers its power bill. The S23 XP Hyd earns about $19.91 a day gross and burns 128.16 kWh, so it breaks even at roughly $0.155 per kWh. That is before pool fees, hosting, cooling losses and the price of the machine itself.

The gap between the best and the worst model is smaller than the spec sheet suggests: about 3 cents per kWh separates the XP Hyd from the air-cooled S23. The bigger difference is the purchase price. At around $25.50 per TH the XP Hyd costs more than twice as much per terahash as the S23e U2H promo, so its efficiency only pays back when electricity is expensive enough for those 3 cents to matter.

What to watch in November

The next difficulty adjustment is due around November 13. Early estimates range from a small drop to a further rise, so break-even numbers can shift by a few percent within two weeks. Hydro units also need a cooling loop, which adds to the real cost of the first batch. If you want to compare against older hardware, see our breakdown of Antminer break-even after the October 29 difficulty jump and the full list of SHA-256 machines and coins.