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  • 19% off Save $8.90 USD

    Whatsminer cb6 v10 control board replacement for m20s m21s m30s m30 m31s+ m32 m50

    Efficiently Repair and Upgrade Your Whatsminer with the CB6 V10 Control Board The Whatsminer CB6 V10 Control Board is the...

    $36.00 USD $44.90 USD
    $36.00 USD
    $36.00 USD $44.90 USD
  • 28% off Save $10.00 USD

    Whatsminer cb4 v10 h6 control board – m20s m21s m30s m31s+ m32 m30s+

    Whatsminer CB4 V10 H6 Control Board | Brand-New Replacement for M20S M30S M31S+ The Whatsminer CB4 V10 (revision H6OS) is...

    $24.90 USD $34.90 USD
    $24.90 USD
    $24.90 USD $34.90 USD
  • 21% off Save $0.40 USD

    Whatsminer adapter board version 1.3 d1 m10 m20 m30 series micro bt control board

    Whatsminer Adapter Board V1.3 for M10 M20 M30 Series Restore connectivity between your hashboard and control board with this Whatsminer...

    $1.50 USD $1.90 USD
    $1.50 USD
    $1.50 USD $1.90 USD
  • 20% off Save $38.10 USD

    Jasminer x4 control board - replacement motherboard

    Jasminer X4 Control Board – Replacement PCBA Motherboard The control board is the brain of your Jasminer X4: it manages...

    $149.90 USD $188.00 USD
    $149.90 USD
    $149.90 USD $188.00 USD
  • Whatsminer cb2 v8 control board 6pin version h3 cpu for m20 m20s m21 m21s

    Whatsminer CB2 V8 Control Board | H3 CPU for M20 M20S M21 M21S The Whatsminer CB2 V8 is the replacement...

    $25.90 USD $0.00 USD
    $25.90 USD
    $25.90 USD $0.00 USD
  • Antminer s21 t21 control board amlogic c76 a113d

    Antminer S21 T21 Control Board | Brand New OEM Replacement The Antminer S21 T21 Control Board is the primary logic...

    $26.00 USD
    $26.00 USD
    $26.00 USD
    Firmware model
  • 30% off Save $45.00 USD

    Iceriver control board ks1 ks2 ks3 ks3m ks3l ks5l ks5m

    Iceriver KS-Series Control Board – Brand New Replacement for KS1 / KS2 / KS3 / KS3M / KS3L / KS5L...

    $104.90 USD $149.90 USD
    $104.90 USD
    $104.90 USD $149.90 USD
    Model
  • 60% off Save $54.10 USD

    Antminer s19j s19jpro brand new control board beagle bone bb version

    Antminer S19j / S19j Pro BeagleBone Black Control Board – Bitmain Replacement Motherboard The Antminer S19j and S19j Pro BeagleBone...

    $34.90 USD $89.00 USD
    $34.90 USD
    $34.90 USD $89.00 USD
  • Antminer s21pro control board a113d amlogic cpu

    Antminer S21 Pro Control Board | AMLogic A113D CPU Replacement Motherboard The Antminer S21 Pro control board with AMLogic A113D...

    $29.90 USD
    $29.90 USD
    $29.90 USD
  • Antminer s19k pro c76 a113d brand new control board

    Antminer S19K Pro C76 A113D Control Board | Brand-New Replacement Motherboard for S19K Pro Miner Repair The Antminer S19K Pro...

    $25.90 USD
    $25.90 USD
    $25.90 USD
  • Antminer s19j s19jpro s19j pro+ amlogic a113d motherboard c76

    Antminer S19j / S19j Pro Amlogic A113D Control Board (C76) – Replacement Motherboard The Amlogic A113D (C76) control board is...

    $29.90 USD
    $29.90 USD
    $29.90 USD
  • 25% off Save $10.00 USD

    Antminer c87 overclocking control board for antminer l7 s19 series miners

    Enhance Mining Efficiency with the Antminer C87 Overclocking Control Board Antminer C87 Overclocking Control Board: designed to optimize the performance...

    $29.90 USD $39.90 USD
    $29.90 USD
    $29.90 USD $39.90 USD
  • 46% off Save $35.10 USD

    Avalon control board for 1066pro, 1166pro, 1126, 1246, 1126pro, 1248, 1266

    Avalon Control Board for 1066pro, 1166pro, 1126, 1246, 1248, 1266 Miners The Avalon Control Board is a direct replacement for...

    $39.90 USD $75.00 USD
    $39.90 USD
    $39.90 USD $75.00 USD
    Chip model
  • Goldshell ck5 ck6 control board brand new replacement controller

    Goldshell CK5 CK6 Control Board Replacement | Brand New Controller for Nervos CKB Miners The Goldshell CK5 / CK6 control...

    $139.00 USD
    $139.00 USD
    $139.00 USD
    Model
  • Antminer l3 l3+ l3++ d3 brand new control board

    Antminer L3+ L3++ D3 Control Board | Bitmain Replacement Motherboard The Antminer L3+/L3++/D3 Control Board is a replacement motherboard for...

    $24.90 USD
    $24.90 USD
    $24.90 USD
  • 80% off Save $96.00 USD

    Antminer brand new s17 s17+ s17e t17 t17e s17pro series control board

    Antminer S17 / S17+ / S17e / T17 / T17e / S17pro Bitmain Control Board This is a brand-new Bitmain...

    $24.00 USD $120.00 USD
    $24.00 USD
    $24.00 USD $120.00 USD
    Model
  • Whatsminer cb6 v9 control board (h616) – replacement for microbt m66s

    Whatsminer CB6 V9 Control Board (H616) for M66S Repair The Whatsminer CB6 V9 control board is an original replacement component...

    $32.00 USD
    $32.00 USD
    $32.00 USD
  • Whatsminer control board case – protective cover (4-pin / 6-pin)

    Whatsminer Control Board Case – Protective Cover for Mining Hardware The Whatsminer control board case is designed to protect your...

    $5.00 USD
    $5.00 USD
    $5.00 USD
    Type of fan connector
  • Avalon control board for a1566 a1366 a1346 a1446 a1466 – original replacement

    Genuine Avalon 1566 / 1366 / 1346 / 1446 / 1466 Control Board for Miner Repair Stable, Tested, and Reliable...

    $69.90 USD
    $69.90 USD
    $69.90 USD
    Miner model
  • Antminer l9 control board cv1835 cb8 – cvitek processor

    Antminer L9 Control Board CV1835 (CB8) – High-Performance CVITEK Processor Replacement This Antminer L9 control board uses the CVITEK CV1835...

    $24.90 USD
    $24.90 USD
    $24.90 USD
  • 17% off Save $6.00 USD

    Antminer s21xp a113d cbk control board with oled display

    Antminer S21XP A113D CBK Control Board with OLED Display | Drop-In Replacement Motherboard for Antminer S21 XP The Antminer S21XP...

    $28.90 USD $34.90 USD
    $28.90 USD
    $28.90 USD $34.90 USD
  • Elphapex dg1 dg1+ brand new control board replacement for crypto miners

    ElphaPex DG1 DG1+ Control Board Replacement | RK3358J Miner Motherboard The ElphaPex DG1 DG1+ Control Board is a brand new...

    $114.90 USD
    $114.90 USD
    $114.90 USD
    Firmware
  • 7% off Save $10.10 USD

    Jasminer x16-p x16-q control board for miner repair

    Jasminer X16-P X16-Q Original Miner Control Board Upgrade your mining operations with the Jasminer X16-P/X16-Q Control Board, designed to ensure...

    $118.90 USD $129.00 USD
    $118.90 USD
    $118.90 USD $129.00 USD
    Model
  • Brand new iceriver ks5l ks5m control board asic motherboard with square fan connector

    Iceriver KS5L KS5M Control Board with 4p Square Fan Connector Upgrade your Iceriver KS5L and KS5M miners with our Brand New...

    $104.90 USD
    $104.90 USD
    $104.90 USD
    Model

Collection: ASIC Miners Control Boards

ASIC Miner Control Boards — Replacement and Repair for Antminer, Whatsminer, Avalon, Iceriver, Goldshell, Innosilicon

The control board is the brain of an ASIC miner — the small Linux SBC that boots the firmware, communicates with the hashboards over a signal cable, and exposes the web interface where you configure pools and monitor performance. When a control board fails (no boot, no IP, kernel panic, persistent restart), the miner produces zero hashrate regardless of how healthy the hashboards are. This collection covers every control board generation we stock for Antminer (Amlogic A113D C76, BB Beaglebone, C87 overclocking), Whatsminer (CB4, CB5, CB6 V10, H6, H3), Avalon (A10 to A15 generation), Iceriver (KS / AL series), Goldshell (CK5/CK6, KD5/KD6, HS5/LT5), and Innosilicon (T2T / T3 / A4+ / A6+ / G-series) — sourced directly from Shenzhen.

Common control board failure modes

Three symptom patterns point to a control board fault rather than a hashboard or PSU issue :

  • Miner won't boot, no fan spin-up after power-on — the control board doesn't initialise. Power supply is fine (the LED is on), but nothing happens. Suspect the control board MCU or its boot flash.
  • Miner boots but no IP address, no DHCP response, no web UI — network interface failure on the control board, or corrupted bootloader. Sometimes a fresh control board fixes it instantly ; sometimes the control board's signal cable to the network port is the actual culprit (check the cable before replacing the board).
  • Persistent restart loop, kernel panic, immediate shutdown after boot — corrupted firmware, failed onboard flash, or a hardware fault on the MCU bus. Generally faster to swap the control board than try to recover the firmware.

What's in this collection

50+ control board SKUs organised by brand and generation :

  • Antminer (Bitmain) control boards — Amlogic A113D C76 control board for S19j / S19j Pro / S19 K Pro / S21 / T21 (the dominant board in the current Bitmain fleet), BB Beaglebone control boards for legacy S9 / S17 / L3+ generations, C87 overclocking control board for L7 / S19 series miners, dedicated control board for L3+ / D3, brand new S17 / S17+ / S17e / T17 / T17e / S17 Pro series control board.
  • Whatsminer (MicroBT) control boards — CB6 V10 control board for M20s / M21s / M30s / M30 / M31s+ / M32 / M50 (broadest compatibility), CB4 V10 H6 control board for the same generations, CB5 control board for M30 series, CB6 V9 H616 control board for M66S, Whatsminer adapter board V1.3 for D1 / M10 / M20 / M30 series, Whatsminer control board protective case for 4-pin / 6-pin fan configurations.
  • Avalon (Canaan) control boards — Avalon control board for 1066 Pro / 1166 Pro / 1126 / 1246 / 1126 Pro / 1248 / 1266 (covers A10 / A11 / A12 generation), updated Avalon control board for A1566 / A1366 / A1346 / A1446 / A1466 (current generation).
  • Goldshell control boards — Goldshell CK5 / CK6 control board with model selection, Goldshell KD5 / KD6 control board for Kadena mining, dedicated boards for HS5 / LT5 / LT5 Pro.
  • Iceriver control boards — Iceriver control board for KS1 / KS2 / KS3 / KS3M / KS3L / KS5L / KS5M (covers full KAS-mining range).
  • Innosilicon control boards — dedicated boards for T2T / T3 / A4+ / A6+ / G-series Innosilicon hardware.

Why source control boards from LYS Shenzhen

Three reasons repair shops and mining farms standardise on our control boards :

  • Tested and pre-flashed — every control board ships with the matching firmware pre-loaded for the target miner generation. You install, plug in, and the miner boots ready for network configuration. No firmware flash troubleshooting on top of the hardware swap.
  • Genuine boards for current generations — for current Bitmain Amlogic C76, Whatsminer CB6 V10, and Avalon A14 / A15 boards, we source through channels that handle factory-grade hardware. Compatible boards (where supply chain allows) are clearly labelled.
  • Bulk pricing for fleet repair — control boards are $24-$140 each ; at 50+ miners with rolling failure rate, fleet repair shops save significant amounts on volume orders. Quote-based pricing reflects bulk. Worldwide shipping with DDP option for US and EU customers.

Frequently asked questions

Will the control board need re-flashing after installation ?
For most current-generation boards (Amlogic C76 for Antminer S19+ / S21, CB6 V10 for Whatsminer M-series), the firmware is pre-loaded and the miner boots out of the box. For some legacy boards (BB Beaglebone for older S9 / S17), you may need to flash via SD card with the matching firmware version. Each product page specifies whether the board is pre-flashed.

Can I use a CB5 control board on an M30s ? Or a CB4 on an M50 ?
Match the board generation to your miner generation. When in doubt, our team can confirm based on your specific model and the existing control board version printed on the failed board.

I tried a new control board and the miner still doesn't boot — what next ?
After a failed control board swap, the next two suspects are : (1) the data cable between control board and hashboard (worn ribbon causes phantom boot failures) and (2) a PSU output voltage out of spec. Test the data cable with a continuity meter and check the PSU output before assuming the new board is also faulty.

Do you stock the C87 overclocking control board for L7 / S19 ?
Yes, the C87 overclocking control board is stocked specifically for users running Antminer L7 and S19 series miners with custom firmware for hashrate boost. Note that overclocking voids warranty and can shorten hashboard lifespan ; we recommend it only for users who understand the trade-off.

Get a custom quote for bulk control boards

For mining farms with fleet-spec inventory or repair shops processing batch control-board swaps, our volume pricing on control boards reflects scale. Send your miner model mix and reorder volume and we'll quote back with options.

Get Business Pricing →

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