Kramer SWT3-31-HU 3x1 4K60 USB-C/HDMI Switcher
SWT3-31-HU is a high-performance auto-switcher with one USB-C and two HDMI/USB inputs and HDMI output. The connected USB peripherals, such as a room camera and microphone, are switchable for use of the active USB host, for convenient hybrid meeting operation with both room and online participants.
Key features: Hybrid-meeting Collaborative Switching - Controllable coupled-signals switching of both AV and USB host inputs, for concurrent connection with AV output and space USB devices, allows collaborative hybrid meeting where multiple meeting participants are switched to share their content with both room and online meeting participants; BYOD Ease and Convenience - Connect any DP-Alt-Mode-capable USB-C device as an AV presentation source, while providing the connected device with USB 2.0 and Ethernet connection, and (if PD-2.0-capable) up to 60 watts of power, via a single USB-C cable connection only; HDMI Signal Switching - HDCP 2.3 compliant, supporting deep color, x.v.Color™, CEC, HDMI uncompressed audio channels, Dolby TrueHD, DTS-HD, 2K, 4K, and 3D as specified in HDMI 2.0; USB 3.2 Switching - USB 3.2 signals switching, enables high data-rate connection between active USB host and space USB devices, such as 4K camera, high-quality audio devices, and HID (Human Interface Devices) mouse or keyboard devices; HDMI Mirroring - Active USB-C or HDMI input signal is mirrored to loop output port for connecting a local monitor or adding an additional unit in a daisy chain.
| Inputs | 1 DP Alt Mode & PD 3.0 USB-C: On a USB type-C female connector; 2 HDMI: On an HDMI female connector |
|---|---|
| Outputs | 1 HDMI: On an HDMI female connector; 1 HDMI Loop: On an HDMI female connector; 1 Balanced Stereo Audio Line: On 5-pin terminal block connector; 1 IR: On a 3.5mm mini jack for IR extension |
| Ports | 1 USB 3.2 Host: On a USB-C female connector; 2 USB 3.2 Host: On a USB-B female connector; 4 USB 3.2 Device: On USB type-A female connectors; 1 Ethernet: On an RJ-45 female connector for LAN connection; 1 RS-232: On a 3-pin terminal block; 2 GPIO: On a 2-pin terminal block |
| Video | Max Data Rate: 18Gbps bandwidth (6Gbps per graphic channel); Max Resolution: 4K@60Hz (4:4:4) resolution; Content Protection: HDCP 2.3; HDMI Support: Deep Color, 3D, HDR as specified in HDMI 2.0b |
| USB Features | USB 3.2 Data Rate: Up to 10Gbps; Integrated USB Hubs: 1; Standards Compliance: USB 3.2 GEN 2, 2.0 and 1.1 |
| Analog Audio | Max Output Signal Level: 14.5dBu; Impedance: 500Ω; Bandwidth: 20Hz - 20kHz; Crosstalk: -114dB; THD + N: 0.005% @1kHz at nominal level; S/N Ratio: 85dB, 20Hz - 20kHz; Coupling: DC |
| Power Adapter | Source: 20V DC: 6A (included) |
| Note | For HW Rev 02 and higher, 20V PSU (power supply unit) is included (replacing the 12V PSU) |
| Consumption | 4.4A |
| Max. Power | 84W |
| Power Adapter | Source: 12V DC 2A (optional) |
| Consumption | 1.8A |
| Max. Power | 22W |
| PoE Consumption | 144mA |
| Max. Power | 7.8W |
| USB-C Charging Max. Power | 60W |
| Note | When powered with 20V power supply only |
| Compliance | PD 3.0 |
| USB Device Charging Max. Total Current | 2A |
| Environmental Conditions | Operating Temperature: 0° to +40°C (32° to 104°F); Storage Temperature: -40° to +70°C (-40° to 158°F); Humidity: 10% to 90%, RHL non-condensing |
| Regulatory Compliance (Standards Compliance) | Safety: CE, UL; Environmental: RoHs, WEEE |
| Enclosure | Size: Mega Tool; Type: Aluminum; Cooling: Convection Ventilation |











