Realize Your Miners’ True Potential
More performance. Less power. Innovative auto-tuning. Bitmern is an authorized deployment partner for Marathon Digital’s MARAFW — the firmware that sets MARA apart. Now available for your fleet.

Four Ways MARAFW Transforms Your Fleet
Optimize Performance
Boost hashrate while maintaining peak efficiency. MARAFW extracts maximum output from every hashboard without compromising hardware lifespan.
Auto-Tune Like Never Before
Set your target — performance, efficiency, or balanced — and let MARAFW optimize automatically. Results in minutes, not hours of manual tuning.
Overclock or Underclock with Ease
Need more hashrate? Push to 35% above stock. Prioritizing efficiency? Underclock to the sweet spot. One slider, full control.
Safeguard Your Miners
Intelligent thermal protection activates in seconds. MARAFW monitors temperature per-chip and adjusts frequency dynamically to prevent damage.
Proven Performance
Up to 35%
Overclocking above stock settings
99%
Uptime with MARAFW-managed fleets
25-29 W/TH
Industry-leading efficiency on S19J Pro
“Deploying MARAFW across our 15MW S19j Pro fleet yielded outstanding results: up to 35% overclocking, 99% uptime, and industry-leading efficiency at 25-29W/TH.”
Supported Miners

Full Control from the Dashboard
- 1
Automatic Tuning
Set a target and let firmware optimize across all hashboards
- 2
Mode Selection
Overclock, underclock, or balanced with a single setting
- 3
Environment Profiles
Air, hydro, or immersion cooling presets
- 4
Pool Failover
Configure multiple backup pools with automatic switching
- 5
Detailed Logs
Troubleshooting data with export capability
Two Ways to Deploy
Over-the-Air (OTA)
Remote installation by Bitmern's technical team. No physical access needed. Ideal for hosted miners.
SD Card
Flash the firmware to an SD card and insert into the miner's control board. For self-hosted deployments.
Hardware Upgrade: UCB 2100
For maximum MARAFW performance, the MARA UCB 2100 replacement control board comes pre-loaded with proprietary firmware. Drop-in compatible with Bitmain Antminers.
- Pre-loaded MARAFW firmware
- Large-scale remote deployment support
- Immersion-ready design
- Compatible with Foreman, Awesome Miner, BTCtools
Upgrade Your Fleet Today
Whether you're hosted with Bitmern or running your own facility, MARAFW can optimize your miners. Contact us to get started.