🧠📽️ M1 (P+D) • VGA+USB Cable

This cable connects a VGA video source and USB host to a projector or display with an M1 (P&D) input. It transmits analog video via VGA and enables USB-based control features like remote mouse or firmware updates.
 
🔧 Cable Format & Use Case
🔌 M1 Male → VGA Male + USB Type-A Male
VGA carries analog video signal (up to 1600×1200)
USB enables mouse control, firmware updates, or remote input
Combines two functions into one cable for simplified projector connectivity
 
🖥️ Compatible Devices
📽️ Projectors with M1 (P&D) input ports (InFocus, Proxima, ASK)
💻 Laptops and desktops with VGA and USB-A outputs
🧠 Embedded systems with VGA and USB control interfaces
🖼️ Presentation carts and AV switchers with M1 compatibility
🧰 Diagnostic setups using legacy projector control protocols
 
✅ Common Uses
🎥 Connect PC to projector for video + remote control
🧠 Enable mouse-over-video functionality during presentations
🔁 Combine video and USB into a single cable run
🛠️ Update projector firmware via USB passthrough
📦 Simplify AV setups in classrooms, conference rooms, and embedded rigs
 
🧠 Signal Format Notes
⚙️ VGA: Analog RGBHV, 15-pin HD connector
🔌 USB: Standard USB 2.0 Type-A for control/data
🧬 M1 (P&D): 29-pin connector supporting VGA, DVI, and USB
📉 No native audio—requires separate audio cable if needed
🔁 USB function varies by projector model (mouse, updates, etc.)
 
⚠️ Things to Watch Out For
🚫 M1 (P&D) ≠ M1 (EVC)—same pins, different shell shape
🧯 Not compatible with HDMI or DVI-only projectors
📉 USB may not support full HID functionality—check projector specs
🔌 Cable length affects VGA signal quality—keep under 25 ft for best results
🧪 Some projectors require USB for remote control to function
 
🛠️ Quick Tips for Beginners
🧠 Identify M1 (P&D) by its wide rectangular connector with 29 pins
🔄 Plug VGA into video source, USB into host, M1 into projector
🧼 Clean contacts gently—dust can cause ghosting or signal loss
🏷️ Label clearly—M1 cables are rare and easily confused with DVI
🎨 Use in legacy AV setups where combined control and video are needed