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The Problem: You're running VPX Mixed Reality tables on Quest 3. Virtual Desktop makes it work — the chroma key passthrough is chef's kiss. Your real room shows through where the VR room sphere color was. But if you've got Wi-Fi interference (and who doesn't), wireless MR is basically unplayable. Dropped frames, stuttering, passthrough lag. You know. Wired would fix all of it. But nobody had a documented wired MR solution for VPX. Until now! The Solution: ALVR is a free, open-source PCVR streaming tool. You probably know it as a wireless Virtual Desktop alternative. But v20.12 added something nobody talks about: #1.Wired USB support #2. Built-in chroma key passthrough After you install: Plug your Quest 3 in, Go thru all the tabs. Make sure to enable Wireless, enable chroma key in ALVR (RGB Chroma Key, set RGB to 255 ((most tables))) , launch VPX. Done. MR tables work fully wired. What You Actually Need: Quest 3 (you need color passthrough) USB cable (Link cable or good USB 3) ALVR (free, latest release) Developer Mode on your headset The Setup (5 minutes) Step 1: Meta Quest Link Settings Open Meta Quest Link app on PC Settings → Developer Turn ON: Developer Runtime Features Passthrough over Meta Horizon Link Passthrough Camera API permissions Restart the app Step 2: Install ALVR Download latest from ALVR GitHub (https://github.com/alvr-org/ALVR/releases/tag/v20.14.1) Install server on PC Sideload client to Quest 3 (ALVR launcher handles this) Step 3: Enable Wired Mode ALVR dashboard → Devices Toggle "Wired Connection" Plug in headset via USB Accept USB debugging prompt on headset Step 4: Enable Chroma Key ALVR dashboard → Passthrough Enable chroma key mode Set key color to match your table's sphere (usually green - 0, 177, 64 or white- 255) Step 5: Launch VPX Fire up your MR table Real room shows through the keyed color No Wi-Fi, no interference! Cheers!