If your project requires operation in a hot warehouse, a bouncing vehicle, or a salt-sprayed deck, and you need responsive support for the next five years, the sone127 2021 new remains a top-tier candidate.

"The fan header is not working." Fix: The 2021 new uses a PWM fan header with a different pinout (Pin 1: Sense, Pin 2: Ground, Pin 3: 5V, Pin 4: PWM). Do not plug 3-pin legacy fans directly; you need an adapter.

| Feature | sone127 2021 new | Raspberry Pi CM4 | NVIDIA Jetson Nano | | :--- | :--- | :--- | :--- | | Operating Temp | -40°C to +85°C | 0°C to +50°C | -25°C to +80°C | | Warranty | 5 years (industrial) | 1 year (consumer) | 2 years | | Onboard NPU | Yes (0.8 TOPS) | No | Yes (0.5 TOPS GPU only) | | ECC Memory | Optional | No | No | | Price (2023) | $89 (4GB) | $55 (4GB) | $129 (4GB) |