Bitmain Opens Bidding on S19k Pros at $5.5/TH as Market Slump Pressures Bitcoin Miner Sales
Bitmain has opened a public bidding process for Antminer S19k Pro machines, offering a starting price of $5.5/TH/s as the company seeks to move inventory in a difficult bitcoin mining hardware market.
In an announcement on X, the manufacturer invited buyers to “name your price” for two S19k Pro variants: a 120 TH/s model running at 23 J/TH and a 136 TH/s model at 27 J/TH.
Bidding opened on Nov. 18 and will close on Nov. 24, with the final clearing price set to be announced on Nov. 27. Shipments are expected in December after purchasers settle remaining balances.
The auction includes equipment that is no longer at the top tier of efficiency, landing well behind Bitmain’s S21 lineup and rival units launched this year. Yet the unusually low starting price points to the broader challenges facing manufacturers, who are grappling with slower demand following bitcoin’s recent pullback and a cooldown in mining expansion.
Selling fleets of (likely used) machines through open bidding marks one of the clearer indications that Bitmain is pursuing more aggressive inventory-clearing measures. The company has in recent quarters faced softer customer appetite for both new-generation machines and refurbished units, as miners delay capex and adapt to compressed hashprice economics.
Bitmain’s auction spans a one-week bid window, with shipping scheduled for December 2025.
