Vnish

Vnish makes custom firmware for Bitmain Antminer miners, from the S9, T9+, S17, T17 and L3+ to the S19, S21, T21, L7, L9 and Z15 Pro series: tuning presets for clock, voltage and fans to raise hashrate or cut power use, with free Vnish Monitoring for devices running the official firmware. It also hosts stock Bitmain firmware and SD images for returning a miner to factory settings. Partner firmware: for hosting companies, mining hotels, farms and pool operators, Vnish builds a version with your logo and your own share of the dev fee, so you earn on the hashrate of the machines you host and can collect rent on time. PROFI from 10 ASICs; BUSINESS from 1,000 ASICs with a lower dev fee and individual tuning profiles. Ordered through Vnish's Telegram, with 24/7 chat support. Pricing: dev fee of at most 2.8% of hashrate, taken automatically; 2.8% down to 1.8% on the partner version, depending on hashrate. Official sites: vnish.group, vnish.us, vnish.cn, vnish.es.