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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Antminer L7 Chip Replacement Workflow
this control board fits the existing chassis without modification
The Whatsminer CB2 V8 is the replacement control board for MicroBT's M20 and M21 generation miners
Read / verify existing firmware before rework — back up the original MCU contents in case the new firmware fails
Q: Will my existing firmware re-flash onto the new board
Whatsminer P222B Power Supply Unit PSU for M30 M50 M60 buck regulator Antminer L7 Chip Replacement WorkflowWhatsminer P222B Power Supply Unit 14. 5V 230A 3300W 96% Efficiency PSU for M50 M60 M30S++ Series Whatsminer Crypto Miner Power Delivery The Whatsminer P222B is the original spec power supply unit for the mid range and high performance air cooled Whatsminer fleet: M60, M60S, M30S++, M50, M50S, M50S+, M50S++, and M30S+ configurations. Drop in replacement when an original P222B fails, or stock deepening for fleet operators maintaining spare inventory.
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