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What is the actual function of that cuboid where the Vive Tracker USB dongle is plugged into (see picture)? : r/Vive
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SteamVR™ USB Wireless Receiver Dongle for Valve Index™ Controllers and HTC Vive™ Tracker – VRDongles
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Tracker Receiver USB Dongle for HTC VIVE Cradle Cable Set SteamVR Games Activity Tracking for Valve Index Controller| | - AliExpress
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