ROI ASICVNISH GLOBAL
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VNISH firmware · v1.3.4-stable

Antminer S21 Hydro

ROI ASIC is an official distribution of VNISH firmware for 45 Antminer models (S21, T21, S19, L7, L9 series). The build is free. Remote NAND install takes about 15 minutes and is fully reversible to stock. Product presentations are available in 10 languages.

Hashrate335 TH
Power5360 W
J/TH16.0 J/TH

Control board

Which control board is inside?

Control board
Xilinx (XIL)15.4 MBDownload firmware →

Presets

Open the dashboard and pick from a whole range of presets - from quiet eco to overdrive. The effect shows immediately; rollback anytime. Presets & J/TH →

No tech skills? Three steps, 15 minutes

Install Toolkit 1.7.3 (installs your local ROIASIC file, phones nowhere for firmware) - pick your platform below, SHA-256 published

Install firmware → Toolkit 1.7.3 Back to stock