Fanless. Silent.
The current generation runs fanless under normal 32°N workload. No moving parts. No fan noise below decks at 3 a.m. No dust to clear. No bearing to wear out.
Platform · Hardware
The brain of your boat is a Mac mini.
Off-the-shelf, low-power, fanless. The smallest part of the install and the most reliable. One computer. One gateway. That's the whole hardware story.
Why Mac mini
Built for life on a boat — by accident, not on purpose.
Apple didn't design the Mac mini for marine. But the things that matter on a boat — silent operation, low power draw, reliable cooling, off-the-shelf availability worldwide — happen to be exactly what a desktop Mac mini already is.
Low power. About 6 W typical.
About what an LED cabin light draws. I can run it on the house battery without worrying about a 24/7 platform draining reserves. Less load on solar than the fridge.
Apple Silicon. AI runs locally.
The same chip that powers a MacBook gives useful AI inference on the boat — anchor watch, anomaly detection, voice transcription — without sending data to the cloud or waiting for connectivity.
Off-the-shelf. Available worldwide.
If mine fails in Palma, Antigua, or Auckland, I walk into the nearest Apple store and buy a replacement. Restore from backup. Cruising again the same day. No specialist marine retailer to chase.
How it connects
Plug it into the boat you already have.
NMEA-2000 in, event bus out.
If your boat has NMEA-2000 — which most boats built in the last 20 years do — 32°N connects through any off-the-shelf gateway. One end plugs into your existing network backbone, the other end plugs into the Mac mini. That's the entire physical install on the instrument side.
32°N reads from your existing instruments and sensors — wind, depth, speed, GPS, AIS, engine data, tanks, batteries. Nothing custom needs to be installed on the boat side.
Bluetooth and WiFi-based devices — Victron battery monitors and certain other instruments — feed in through their own adapters into the same event bus. One bus, one data model, every sensor.
The Mac mini also joins your boat's WiFi network. Your phone, tablet, and laptop reach it over WiFi — same apps, same data, on every screen. When you have internet (marina, hotspot, satcom), the hub reaches the cloud for AI, weather, sync, and backups. Off-grid? The safety surfaces fall back to local AI on the Mac mini.
The whole install
Two pieces of hardware. That's it.
No proprietary boxes. No specialist installer. If you can fit a stereo, you can fit 32°N.
Mac mini
The hub. Sits below decks, powered from the house battery. Connects to the boat network via WiFi or Ethernet. Available at any Apple store, anywhere in the world.
NMEA-2000 gateway
Off-the-shelf. Plugs into the existing NMEA-2000 backbone on one end and into the Mac mini on the other. Any standard gateway works — USB or Ethernet into the hub.
What I've tested
NMEA-2000 gateway compatibility.
I frame this as what I've personally tested rather than a definitive list. The NMEA-2000 standard is broad; any gateway that exposes frames over USB serial or Ethernet in a standard format should work, but testing is the only way to be sure.
| Gateway | Interface | Status | Notes |
|---|---|---|---|
| Actisense NGT-1 | USB serial | Tested | The reference gateway. Well-documented protocol, widely available. |
| Yacht Devices YDWG-02 | Ethernet (WiFi) | Tested | WiFi gateway. Useful where USB is inconvenient. |
| iKonvert USB | USB serial | Tested | Compact. Direct USB. Solid at the bench. |
| Actisense W2K-1 | Ethernet / WiFi | Tested | Ethernet-first. Works when connected via cable; WiFi mode adds latency. |
| Other USB NMEA-2000 bridges | USB serial | Untested | Should work if they expose frames in standard USB serial format. Let me know if you try one. |
Power budget
What the hardware costs in watts.
The whole platform hub draws less than a cabin LED strip at full brightness. Here's how the numbers break down.
~6W
Mac mini hub
Typical at normal 32°N workload. Peaks to ~20 W under sustained AI inference but drops back quickly.
~1W
NMEA-2000 gateway
USB-powered from the Mac mini. No separate power run needed from the battery.
~7W
Total platform hardware
At typical load. That's 168 Wh per day — about 14 Ah at 12 V. Less than a chart table lamp left on overnight.
Not magic
The hub isn't magic. It's a small computer running open-source software on commodity hardware. The reference platform is Mac mini because boats run on batteries and watts matter — but if you don't want Apple, fork the platform and target whatever you like. The whole stack is AGPL-3.0. The architecture doesn't depend on Apple Silicon; that's just the right hardware for where the project is now.
See the rest of the platform.
Hardware is layer one of five. The data sources page covers everything the platform reads from the boat and from the cloud. The platform overview shows how all five layers fit together.