The manufacturer's warranty applies.

The manufacturer sets the duration and conditions (for example Bitmain, MicroBT or Canaan), and they depend on the model. The warranty period is stated in the quote, and we send you the manufacturer's terms on request.

You file the claim with the manufacturer. We send you the relevant warranty terms and contact details, help with troubleshooting and answer questions about the process. The warranty is given by the manufacturer, not by us.

Before dispatch every unit is connected and briefly checked for function. Test reports are only provided for used units.

Check the shipment on delivery. If a unit is damaged or does not start (DOA, dead on arrival), contact us right away with photos of the packaging and the unit. We will then sort out repair or replacement with you.

Manufacturers usually exclude: damage from wrong voltage or an unstable power supply (for example burnt hashboards), moisture and corrosion, incorrect installation or cooling, your own modifications and third-party repairs, damage from overclocking or third-party firmware, and normal wear, for example on fans. The manufacturer's terms apply.

We only sell to businesses, so there is no consumer right of withdrawal. Once payment has arrived the order is binding, and we do not take hardware back. Warranty and DOA cases are the exception: the unit is then repaired or replaced.

Write to info@cipheron.io with your order number, serial number, a description of the fault and photos or a video. We usually reply the same day, always within 24 hours.