MARA UCB 2100 is a replacement control board that comes preloaded with Marathon’s proprietary firmware – MARAFW.

MARA UCB 2100’s primary benefits come through MARAFW, which offers several key features to optimize Bitcoin miners: It increases hash rate while maintaining optimal efficiency, allows quick auto-tuning or manual customization of settings for targeted performance, and provides options for overclocking to boost bitcoin production or underclocking for peak efficiency. Additionally, MARAFW includes intelligent thermal protection to prevent overheating, thereby protecting the longevity of miners.

You can purchase the MARA UCB 2100 with or without the Lifetime License (LTL). Opting for the standard offering without the license incurs a 2.0% developer fee, whereas the premium offering includes the LTL and carries no developer fees, for as long as you are using the control board.

MARA UCB 2100 supports a majority of Bitmain Antminer S19 and S21 series models. However, you should check your control board package for an accurate list of models supported by your board.firmware@mara.com

Supported Miners:

There are no limitations on which mining pools can be used with MARA UCB 2100. You can configure multiple pools using the MARAFW dashboard or using common mining management tools.

Simply swap your miner’s current control board and connect it to a mining pool of your choice. If you have any questions, reach out tofirmware@mara.com.