Description
The Kramer SWT3-31-HU-TR is a high-performance 3×1 auto-switcher and HDBaseT 3.0 extender designed for advanced hybrid meeting spaces and modern BYOD environments. Equipped with one USB-C (DP Alt Mode + PD 3.0) and two HDMI inputs, it delivers seamless switching, 4K60 4:4:4 video distribution, and full-speed USB connectivity for room peripherals such as cameras, microphones, and interactive devices.
This flexible unit supports transmit or receive modes, enabling it to function as either a sender or receiver in an HDBaseT system. It extends HDMI, USB 2.0, Ethernet, RS-232, IR, and power over a single twisted-pair cable up to 100m. With intelligent USB routing, the switcher allows local or remote USB devices to dynamically pair with the active USB host—ideal for hybrid conferencing workflows.
Additional professional features include HDMI mirroring for local display, automatic switching, integrated audio de-embedding, CEC display control, PoE flexibility, and a built-in intelligent control gateway. Its half-rack form factor supports under-table or rack-mount installation, making the SWT3-31-HU-TR a powerful, space-efficient solution for corporate, education, and unified communication systems.
| Category | Details |
|---|---|
| Inputs | 1 USB-C (DP Alt Mode & PD 3.0), 2 HDMI, 1 HDBaseT (2-way PoE) |
| Outputs | 1 HDBaseT (2-way PoE), 1 HDMI, 1 Balanced Stereo Audio (5-pin terminal) |
| USB Ports | 3 USB 3.2 Host (USB-C & USB-B), 3 USB 3.2 Device (USB-A) |
| Ethernet | 1 RJ-45 (PoE, 1000Base-T LAN extension) |
| Control Ports | 1 RS-232 (3-pin), 1 IR (3.5mm), 2 GPIO (2-pin) |
| Extension Range | Up to 100m (330 ft) over HDBaseT 3.0 |
| Video Performance | 18Gbps, max resolution 4K@60Hz 4:4:4, HDR, Deep Color |
| HDCP | HDCP 2.3 compliant |
| USB Data Rates | USB 3.2 up to 10Gbps, extended USB 2.0 up to 480Mbps |
| Extended Ethernet | Up to 1Gbps |
| Audio | Max level 15dBu, 20Hz–20kHz bandwidth, THD+N 0.002%, S/N −93dB |
| Power Supply | 20V DC, max 6A (120W) |
| PoE Consumption | 144mA (7.8W max) |
| USB-C Charging | Up to 60W (PD 3.0) |
| Environmental | Operating 0°–40°C, Storage −40°–70°C, 10%–90% humidity |
| Regulatory | CE, UL, RoHS, WEEE |
| Enclosure | Half-rack 1U, aluminum, fan-ventilated |
| Product Dimensions | 21.46 × 16.30 × 4.36 cm (8.45" × 6.42" × 1.72") |
| Product Weight | 0.9 kg (1.9 lb) |
| Included Accessories | 20V power adapter & cords, USB-C multi-signal cable |
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
