Check this data, if I remember correctly, these are old ASICs. The profit there is very small and there may be problems with the service and the availability. of spare parts.Baikal BK-B profitability calculator https://minerstat.com/hardware/baikal-b
Looks like they are not profitable atm, but that's at Lbry's current low prices I might see if I can win them, I have a feeling LBC is going to boom. Thank you for the links, that helped a lot.