21energy Port

• Ports: 4 × gigabit ethernet for miners
• Network: Wi-Fi to your home network
• Housing: CNC-machined aluminum, sandblasted and anodized
• Dimensions: 11.7 × 9.5 × 8.5 cm
• Weight: about 200 grams
• Controls: 21energy app, Home Assistant, developer API
• Compatible with: Antminer S9/S19/S21 on Braiins OS, Whatsminer M31, more to come
• Delivery time: 3 to 5 business days

Buy the 21energy Port: one hub for your entire mining setup

If you run more than one ASIC miner, you know the hassle: every miner has its own web interface, its own IP address, its own settings. The 21energy Port solves that with a 12-centimeter box. You plug your miners into the four ports on the front with ethernet, the Port joins your home network over Wi-Fi, and within a minute all your miners appear in one overview in the 21energy app. No command line, no networking knowledge needed.

From that overview you start, stop and pause miners, individually or all at once, and choose from five power levels. Handy if you want to scale back in summer, or only run a miner during hours with cheap electricity. If you want to go further, connect the Port to Home Assistant via the official integration, or build something yourself on the API. The housing is CNC-machined aluminum; this is a device you don't have to hide.

Which miners work with it

Bitmain Antminers running Braiins OS (S9, S19, S21 and their variants) and the MicroBT Whatsminer M31. 21energy adds models through firmware updates. To be fair: a Bitaxe or NerdQaxe doesn't need this; they have their own AxeOS interface. The Port is for anyone running industrial ASICs at home or in the garage, or for anyone who has an Ofen 3 and also runs separate miners.