Description
The Kramer SWT3-31-HU is a high-performance 3x1 4K60 switcher built for modern hybrid meeting spaces, combining USB-C, HDMI, and USB switching into one compact, easy-to-deploy solution. Designed for seamless BYOD workflows, it supports DP-Alt-Mode USB-C devices, provides up to 60W USB-C charging, and intelligently routes AV and USB data to ensure effortless collaboration for both in-room and remote participants.
With mirrored HDMI output, advanced EDID handling, audio de-embedding, and a built-in intelligent control gateway, the SWT3-31-HU enables smart automation, simplified system design, and reliable performance. It supports HDCP 2.3, 4K@60Hz (4:4:4), USB 3.2 high-speed peripherals, PoE powering, CEC display control, and flexible remote/browser management—making it a premium choice for conference rooms, classrooms, and multi-purpose hybrid environments.
| Category | Details |
|---|---|
| Inputs | 1 USB-C (DP Alt Mode & PD 3.0), 2 HDMI |
| Outputs | 1 HDMI, 1 HDMI Loop, 1 Balanced Stereo Audio (5-pin), 1 IR |
| Ports | 1 USB-C Host, 2 USB-B Host, 4 USB-A Device, 1 Ethernet (RJ-45), 1 RS-232, 2 GPIO |
| Video Performance | Max 18Gbps; 4K@60Hz (4:4:4); HDCP 2.3; HDR, Deep Color, 3D (HDMI 2.0b) |
| USB Features | USB 3.2 up to 10Gbps; supports USB 3.2 Gen2/2.0/1.1; integrated USB hub |
| Analog Audio | Max 14.5dBu; 500Ω; 20Hz–20kHz; Crosstalk −114dB; THD+N: 0.005%; S/N 85dB |
| Power (Main Adapter) | 20V DC 6A (included for HW Rev 02+); Max 84W consumption |
| Secondary Power Option | 12V DC 2A (optional); Max 22W consumption |
| PoE Power | 144mA; Max 7.8W |
| USB-C Charging | Up to 60W (PD 3.0) when powered by 20V adapter |
| USB Device Charging | Max total current 2A |
| Environmental | Operating: 0°C to +40°C; Storage: −40°C to +70°C; Humidity: 10%–90% non-condensing |
| Regulatory Compliance | Safety: CE, UL; Environmental: RoHS, WEEE |
| Enclosure | MegaTOOLS aluminum housing; convection cooling |
| Dimensions (W x D x H) | 19.00 × 11.60 × 2.70 cm (7.48" × 4.57" × 1.06") |
| Product Weight | 0.6 kg (1.2 lbs) |
| Shipping Dimensions / Weight | 34.50 × 16.50 × 5.20 cm; 1.2 kg (2.6 lbs) |
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
