Whatsminer CB4_V10 Control Board (Compatible)
$65.99
This CB4_V10 (H6OS platform) is a compatible replacement (non-OEM) control board for Whatsminer M20S, M21S, M30, M30S, M30S++, M31S and M50 miners. Ordina Mining Shop offers it new when diagnostics point to the control board rather than to a hashboard or the PSU.
Key specifications
- Part: Whatsminer control board, new, compatible replacement (non-OEM)
- Board: CB4_V10
- Compatible miners: Whatsminer M20S, M21S, M30, M30S, M30S++, M31S and M50 series
- Platform: H6OS
- Firmware: may need the official H6OS SD-card program, then WhatsMinerTool
- Fits: MicroBT Whatsminer
- Shipping weight: 0.3 kg
Before you order
- Match the revision: the board must match the exact sub-model, hardware revision and firmware generation of your miner; send us the model and a photo of the original board's label before ordering.
- Diagnose first: confirm that the fault sits on the control board (no network, no boot, no hashboard detected) and not on a hashboard, the PSU or the cabling.
- Firmware: run the original firmware linked on the miner pages or ask us first; firmware not approved by OMS voids the warranty.
- Free US shipping; defects reported within 7 days of delivery are covered under our policy for new spare parts.