ML2 OS version: 1.12.0
Use case: We’re deploying ML2 headsets for extended (6-8 hour) data collection sessions and need to simultaneously connect:
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External battery pack to extend battery life
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Samsung T7 SSD (4TB) for video storage
Since ML2 has a single USB-C port, we need a hub/splitter solution.
What we’ve tested:
Hardware:
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UGREEN Revodok 1071 hub (https://www.amazon.com/dp/B0BLNDNBG1)
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AreMe 2-port USB-C splitter (https://www.amazon.com/dp/B0DC51W9YC)
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10,000mAh Anker battery pack
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Samsung T7 SSD
Results:
✓ T7 → ML2 direct connection works perfectly
✓ Battery → UGREEN hub PD port → ML2 (pass-through charging works)
✓ T7 → AreMe splitter data port → ML2 works (but splitter hardware is fragile, breaks frequently)
✗ T7 → UGREEN hub USB-C data port (5Gbps) → ML2 (SSD not recognized, doesn’t light up)
✗ T7 → USB-C to USB-A adapter → UGREEN hub USB-A port → ML2 (SSD not recognized)
Analysis: The hub works fine when tested with a laptop - T7 is recognized through all ports. This appears to be an ML2 USB-C compatibility issue rather than a power problem, since PD pass-through works correctly.
Questions for the community:
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Has anyone successfully used a USB-C hub with ML2 to connect external storage + external battery simultaneously?
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Are there known limitations with ML2’s USB-C implementation that would prevent certain hub chipsets from working?
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Are there specific hub models that are confirmed to work with ML2 for this use case?
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Are simple 2-port splitters the only reliable option, or do more robust alternatives exist?
We understand ML2’s USB-C port can supply 5W (5V, 1A) in OTG mode based on previous forum discussions, and we’re providing external power via the PD port, so this shouldn’t be a power limitation.
Any guidance on compatible hardware or known workarounds would be greatly appreciated. We’re looking to scale this setup to 100+ units.