Just five bitcoin mining machines or ASICs remain profitable at current prices as the cryptocurrency plunged below $55,000 on Friday morning, according to bitcoin mining pool operator F2Pool.

Antminer S21 Hydro, Antminer S21, Avalon A1466I, Antminer S19 XP Hydro and Antminer S19 XP currently remain profitable at a break-even bitcoin price of $39,581, $43,292, $48,240, $51,456 and $53,187, respectively, per F2Pool. 

The Whatsminer M56S++ is teetering on the brink of profitability with a break-even price of $54,424 and bitcoin trading for $54,407 at the time of writing, according to The Block’s bitcoin price page. 

Meanwhile, Bitmain’s Antminer S19k Pro, one of the most dominant ASIC miners on the market since the 2020 Bitcoin halving, has dropped off the list of profitable …