MARA Tech - CV Cracker Card
Supported Models:
- Antminer KS5 Pro
- Antminer KS5
- Antminer KS3 (9.4 TH)
- Antminer KS3 (8.3 TH)
Most Kaspa Antminer models use CVITech control boards, which do not support persistent custom firmware installations. Additionally, many Kaspa Antminers are running stock firmware versions released after April 2024, designed to block custom firmware upgrades.
To install NiceHash Firmware for Kaspa, users must first connect a hardware add-on called the Cracker Card to the control board. Cracker Card is physically attached to the CVITech control board and enables the installation of custom firmware using the standard installation method described here.
The Cracker Card is a hardware add-on for CVITech control boards, enabling remote, over-the-air installation of custom NiceHash Firmware for Kaspa on ASIC machines using stock firmware, released both before and after April 2024.
How to connect a Cracker Card to the Antminer CVITech control board?
Follow these simple steps to connect the Cracker Card to the control board:
- Shut down the Antminer KS3 or KS5 ASIC device
- Remove the lid of your ASIC device
- Connect the Cracker Card to the control board slot
- Place the lid back on device
- Start the ASIC device
After installing the Cracker Card in your ASIC, you can upgrade to NiceHash Kaspa Firmware using the standard installation method. The firmware files are available here: Download Center.
NiceHash Firmware for Kaspa Antminer KS series
The NiceHash Firmware for Antminer Kaspa ASICs is carefully optimized to ensure that your Antminer KS series ASICs deliver peak performance and efficiency.
Benefits of using custom firmware for the Antminer KS series:
- Performance Increase: Increase the performance of your Kaspa ASICs by up to 20%
- Efficiency gains: Increase efficiency by lowering power consumption.
- Thermal Protection: Intelligent thermal protection prevents overheating of your machines.
What is the fee for using NiceHash Firmware for Kaspa?
The fee is dynamic, ranging from 1% to 4%, depending on the overclock level.
| Overclocking | License Fee |
|---|---|
| 0 – 4% | 1% |
| 4 – 6% | 1.5% |
| 6 – 8% | 2% |
| 8 – 10% | 2.5% |
| 10 – 12% | 3% |
| 12 – 14% | 3.5% |
| 14% + | 4% |
What pools are supported?
NiceHash Firmware for Kaspa can only be used on NiceHash.
How to connect to NiceHash?
Follow this guide to connect to NiceHash.
PN: MTCVCKR10
Model: MARA-CV-C
