What is the Kramer SWT3-31-HU-TR switcher extender?
The Kramer SWT3-31-HU-TR is a 3x1 4K60 auto-switcher with one USB-C and two HDMI/USB inputs, an HDMI output and an extended-range HDBaseT 3.0 port that can be set to transmit or receive. It extends 4K60 4:4:4 HDMI, USB 2.0, Ethernet, RS-232, IR and power over twisted pair, and switches room USB peripherals to the active host, making it a central building block for hybrid meeting rooms and classrooms.
How does the Kramer SWT3-31-HU-TR work?
Presenters connect by USB-C (DisplayPort Alt Mode with PD 3.0) or HDMI with USB. The unit auto-switches to the active source and routes the local and remote USB peripherals, such as a room camera and microphone, to that host. The HDBaseT 3.0 link carries video, USB 2.0, Ethernet, RS-232, IR and two-way PoE to a compatible unit at the other end of the room, and because the port is field-configurable, the switcher can sit at the table or at the display.
Switching runs at 4K@60Hz 4:4:4 with 18Gbps bandwidth and HDCP 2.3, with Kramer I-EDIDPro EDID processing and HDMI mirroring to the local output. Multichannel audio is transmitted over HDBaseT and de-embedded to a balanced stereo line output. Display on/off control, a built-in control gateway, bidirectional RS-232 and IR extension, Ethernet extension and K-Pair support simplify integration, and the 1U half-rack fan-less enclosure mounts cleanly in a rack or under a table.
Related options include the Kramer EXT3-21-XR-TR 2x1 HDBaseT 3.0 switcher extender and the Kramer TP-590RXR HDBaseT 2.0 receiver for HDBaseT 2.0 systems.
What are the key features of the Kramer SWT3-31-HU-TR?
- Hybrid-meeting switching — Local and remote USB peripherals follow the active host.
- Three BYOD inputs — One USB-C and two HDMI/USB inputs.
- Configurable HDBaseT 3.0 port — Transmit or receive for deployment at either end.
- Full extension — Carries HDMI, USB 2.0, Ethernet, RS-232, IR and power over one cable.
- 4K60 4:4:4 video — 18Gbps switching with HDCP 2.3 and I-EDIDPro.
- Audio de-embedding — Balanced stereo line output for room audio.
- Display on/off and control gateway — Automates the display and controls room devices.
- Fan-less half-rack enclosure — Quiet 1U half-width chassis.
Where is the Kramer SWT3-31-HU-TR typically used?
- Conference room
- Boardroom
- Training room
- Multi-purpose room
Technical Specifications
| Inputs | 1 USB-C (DP Alt Mode, PD 3.0); 2 HDMI; 1 HDBT (2-way PoE) |
| Outputs | 1 HDBT (2-way PoE); 1 HDMI; 1 balanced stereo audio line |
| Ports | 3 USB 3.2 host; 3 USB 3.2 device; 1 PoE-accepting 1000BaseT Ethernet; 1 RS-232; 1 IR; 2 GPIO |
| Max Resolution | 4K@60Hz (4:4:4) |
| Max Data Rate | 18Gbps |
| Content Protection | HDCP 2.3 |
| Extension Distance | Up to 100m (330ft) |
| USB | USB 3.2 Gen 2, 2.0 and 1.1 |
| Power | 20V DC; max consumption 6A |
| Enclosure | 1U half-rack, fan-less |
| Dimensions | 8.45" x 6.42" x 1.72" (W, D, H) |
| Weight | 1.9 lbs (0.9 kg) approx. |
Frequently Asked Questions
What signals does the HDBaseT 3.0 link carry?
4K60 4:4:4 HDMI, USB 2.0, Ethernet, RS-232, IR and power over a single twisted pair cable.
Can it be installed at either end of the room?
Yes. The HDBaseT 3.0 port can be configured to transmit or receive, so the unit works at the presenter end or the display end.
Does it support hybrid meetings?
Yes. Room cameras, microphones and other USB peripherals are switched to the active host along with the video.
How is it mounted?
It uses a 1U half-rack fan-less enclosure that fits rack or under-table installations.
What warranty and support are included?
Kramer's manufacturer warranty applies. Creation Networks designs, installs and supports hybrid rooms; browse the Kramer collection or contact us for current terms.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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