Whatsminer CB4 V10 H6 Control Board – M20S M21S M30S M31S+ M32 M30S+
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Whatsminer CB4 V10 H6 Control Board | Brand-New Replacement for M20S M30S M31S+
The Whatsminer CB4 V10 (revision H6OS) is the high-performance control board used across the MicroBT WhatsMiner family — a brand-new, MicroBT-certified replacement PCB designed as a direct swap for damaged or faulty boards on M20S, M21S, M30S, M31S+, M32, and M30S+ rigs. Featuring a DVI monitor port, Ethernet networking, and an IEC C19 16A power input, the CB4 V10 brings together all the connectivity and stability your hashboards need to run uninterrupted at full hash rate.
This control board ensures stable operation, improved hashrate efficiency, and enhanced durability for your ASIC mining rig. The high-grade PCB, optimised heat dissipation, and certified manufacturing make it the right call for fleets where uptime drives margin. Note: minor visual variations may occur between batches, but performance remains uncompromised.
CB4 V10 H6OS Features — DVI Port, High Hashrate & Reliable Mining Performance
- Direct replacement for damaged or faulty boards across the WhatsMiner M20-M30 line.
- Optimised heat dissipation and energy efficiency for sustained 24/7 operation.
- Multi-model compatibility — one part fits M20S, M21S, M30S, M31S+, M32, M30S+.
- High-quality PCB materials for long-term reliability under continuous mining loads.
- DVI monitor port + Ethernet for diagnostic access and pool connectivity.
When to Replace the Whatsminer CB4 V10
If your M20S, M21S, M30S, M31S+, M32, or M30S+ no longer powers on, fails to acquire a network address, refuses to detect attached hashboards, or repeatedly drops offline without an obvious PSU or hashboard fault, the CB4 V10 control board is the most likely culprit. Swapping the board is a plug-and-play operation that typically restores full miner functionality without firmware re-flashing in standard configurations.
CB4 V10 Control Board Specifications
| Feature | Specification |
|---|---|
| Model Number | CB4-V10 H6OS |
| Monitor Connection | 1x DVI Port |
| Working Temperature | -5°C to 35°C |
| Networking Mode | Ethernet |
| Power Input | IEC C19 (16A) |
| Compatibility | M20S, M21S, M30S, M31S+, M32, M30S+ |
| Material | High-grade PCB |
| Condition | Brand new |
Related products
- Whatsminer CB2 V8 H3 Control Board (M20/M21)
- Whatsminer H6/H6OS BGA Reballing Stencil
- Whatsminer M20 M20S M21 Hashboard Tester
- H5TQ2G63GFR DDR3 Memory Chip for Whatsminer Control Board
Mining farms ordering CB4 V10 control boards in volume for fleet maintenance can contact contact@lys-sz.com for bulk pricing and priority fulfillment. Worldwide shipping from our Shenzhen warehouse.
Shipping & Customs
🇺🇸🇪🇺 USA & European Union (DDP):
Orders are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world:
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
