Description
The QOMO QD3900H2 is a high-performance portable visualizer designed for classrooms, boardrooms, and professional presentations. Equipped with a 5.0-megapixel camera, it delivers crisp, detailed images at resolutions up to 1920×1200 (Full HD). The QD3900H2 supports both HDMI and VGA connections, allowing seamless integration with projectors, monitors, or computers.
With 10× optical zoom and 10× digital zoom, users can capture fine details of documents, 3D objects, and negatives. Its flexible arm design allows smooth adjustments, while features like auto focus, image rotation, split screen, and freeze frame enhance interactive presentations.
The unit also includes LED arm and bottom lamps, RS232 control, and USB connectivity for live capture and recording. Supporting resolutions up to 1080p@30fps, it functions as a document camera, webcam, or external visual input source, making it a versatile tool for educators and professionals alike.
| Feature | Description |
|---|---|
| Model | QD3900H2 |
| Total Pixels | 5.0 Megapixels |
| Optical Zoom | 10× Optical / 10× Digital |
| Focus | Auto / Manual |
| White Balance | Auto |
| Resolution Options | XGA (1024×768), SXGA (1280×1024), WXGA (1280×768), 720P (1280×720), 1080P (1920×1080), 800P (1280×800), 1200P (1920×1200) |
| Image Functions | Freeze, Split, Rotate (0°/90°/180°/270°), Mirror, Negative/Positive, Text/Video Mode, B&W Mode |
| Lighting | Dual 1.5W LED Arm Lamps and 2.5W Bottom Lamp |
| Input Ports | HDMI ×1, USB Type-A ×1, USB Type-B ×1, VGA ×1, RS232 (DB9) ×1, MIC (Built-in) ×1, Audio IN (Mini Jack) ×1 |
| Output Ports | HDMI ×1, VGA ×2, RS232 (PS2) ×1, Audio OUT (Mini Jack) ×1 |
| Supported OS | Windows 7 / 8 / 10 / 11 |
| Connectivity | RS232 for Projector Control, USB 2.0 for Capture and Storage |
| Camera Rotation | Vertically 330° |
| Power Requirement | 12V DC, 2A (External AC Adapter) |
| Dimensions (W×D×H) | Folded: 510×410×120 mmSetup: 510×530×570 mmPacking: 600×200×480 mm |
| Weight | Net: 5.0 kg / Gross: 7.0 kg |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
