Short answer: no. I found no Jetson Thor carrier board in our partner catalog that is rated purely "Fanless" — filtering the 221 Carrier Boards for Jetson Thor compatibility plus fanless cooling returned zero matches. The closest options are seven Thor carriers rated Fan/Fanless (the fan is optional and can be omitted), which I would not present as fully fanless for a sealed enclosure.
What I could not determine: the catalog does not state whether any of these boards can actually sustain a Thor module's thermal load without the fan, nor does it carry sealed-enclosure / IP-rating data for them — so I cannot confirm any of these are suitable for a fully sealed enclosure. That confirmation would have to come from each manufacturer's datasheet.
Here are the seven Fan/Fanless Jetson Thor carrier boards I found, so you can take the thermal question to the makers directly:
| Product | Manufacturer | Power Input | Operating Temp |
|---|---|---|---|
| RTSO-4002 | Realtimes | 9–36 V | −40 to 85 °C |
| RTSO-4006 | Realtimes | 9–28 V | −40 to 85 °C |
| RTSO-4007 | Realtimes | 9–28 V | −40 to 85 °C |
| DSBOARD-THRMAX (datasheet) | Forecr | 18–36 V | −40 to 85 °C |
| Gauntlet (datasheet) | Connect Tech | 36–60 V | −40 to 85 °C |
| A801 | Leetop | 12 V | not listed |
| A802 | Leetop | not listed | not listed |
All seven support the Jetson T5000 128GB module, and six of the seven also list the T4000 64GB. forecr.io +2forecr.io ↗“compatibility.jetson_module=Jetson T5000 128GB, Jetson T4000 64GB”leetopgroup.com ↗“compatibility.jetson_module=Jetson T5000 128GB, Jetson T4000 64GB”connecttech.com ↗“compatibility.jetson_module=Jetson T5000 128GB”
A few notes on the Fan/Fanless rating: the Forecr DSBOARD-THRMAX is listed with cooling "Fan/Fanless" and a −40 to 85 °C operating range, as are the three Realtimes RTSO-4000-series boards, the Connect Tech Gauntlet, and the Leetop A801/A802. Whether the −40 to 85 °C range holds without the fan, and under what airflow or derating conditions, is not stated in the catalog — for a fully sealed enclosure that is the key question to put to Realtimes, Forecr, Connect Tech, or Leetop before committing. forecr.io +6forecr.io ↗“thermal.cooling=Fan/Fanless, thermal.max_operating_temp_c=85 °C, thermal.min_operating_temp_c=-40 °C”realtimesai.com ↗“thermal.cooling=Fan/Fanless”realtimesai.com ↗“thermal.cooling=Fan/Fanless”realtimesai.com ↗“thermal.cooling=Fan/Fanless”connecttech.com ↗“thermal.cooling=Fan/Fanless”leetopgroup.com ↗“thermal.cooling=Fan/Fanless”leetopgroup.com ↗“thermal.cooling=Fan/Fanless”