
Kramer SWT3-21-HU-TR 2x1 4K60 USB-C/HDMI Switcher Extender
- Visa
- Mastercard
- American Express
- PayPal
Or 3 interest-free payments of £359.20 with PayPal Pay in 3.
4.5 on Trustpilot · 14 reviewsSeen it cheaper? We price-match genuine like-for-like quotes. How it works
- Sourced through UK distribution
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
Description
SWT3-21-HU-TR is a high-performance auto-switcher with one USB-C and one HDMI/USB input, HDMI output and long-range HDBaseT 3.0. The HDBaseT 3.0 port is configurable as either transmit (output) or receive (input) link. The unit extends a 4K60Hz (4:4:4) HDMI, USB 2.0, RS-232, IR and I/O signal over a 40 meter twisted pair cable. The local and remote connected USB peripherals, such as a room camera and microphone, are switchable for use of the switcher active USB host, for convenient hybrid meeting operation with both room and online participants. The unit is ideally deployed either at the presentation source end or at the display end. Manufacturer part number SWT3-21-HU-TR.
Key features
Hybrid-meeting Collaborative Switching - Controllable coupled-signals switching of both AV and USB host inputs, for concurrent connection with AV output and USB devices, allows collaborative hybrid meeting where meeting participants are switched to share their content with both room and online meeting participants.
BYOD Ease and Convenience - BYOD Ease and Convenience - Connect any DP-Alt-Mode-capable USB-C device as an AV source using a single USB-C cable. The connection also provides USB and Ethernet access, and (if PD-2.0-capable) up to 60 watts of charging power.
High Performance Standard Extender - Professional HDBaseT 3.0 extender for providing long-reach signals over twisted-pair copper infrastructures. SWT3-21-HU-TR is a standard extender that can be connected to any market-available HDBaseT-compliant extension product. For optimum extension reach and performance, use recommended Kramer cables.
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 2.0b.
Flexible USB Switching and Extension - An active USB 3.2 host is connected to the switcher extender on either the transmitter or receiver sides. USB 2.0 signals are extended between the switcher extender transmitter and receiver sides, enabling connection and switching of the active USB host to both local USB 3.1 and remote USB 2.0 devices, such as camera and audio devices, or HID (Human Interface Devices) mouse or keyboard devices.
HDMI Mirroring - On switcher transmitter side, active USB-C or HDMI input signal is transmitted on HDBT output, and in parallel mirrored to HDMI output port for connecting a local monitor or adding an additional unit in a daisy chain.
I-EDIDPro™ Kramer Intelligent EDID Processing™ - Intelligent EDID handling, processing and pass-through algorithm that ensures Plug and Play operation.
Multi-channel Audio Transmission - Up to 32 channels of digital stereo uncompressed signals for supporting studio-grade surround sound.
Field-configurable HDBT direction - Instantly set the unit's role during power up. The unit is set to either a receiver (with 3 inputs - HDBT, USB-C and HDMI) or a transmitter (with 2 inputs - USB-C and HDMI and one HDBT output).
Audio De-embedding - The digital audio signal passing to the output, is de-embedded, converted to an analog signal and sent to the stereo balanced analog audio output. This enables playing the audio on a locally connected professional audio system (such as DSP) and speakers, in parallel to playing it on the speakers connected to the AV acceptor device (such as TVs with speakers).
Technical specifications
Documents
Delivery & returns
Estimated delivery 9 Sept - 13 Sept. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.
Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.
Bought in the UK, backed in the UK
This item is sourced through UK distribution and ships to you from within the UK, so the order never crosses a customs border.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.
Payment & security
Pay securely by card. Education customers can apply for a 30-day purchase order account.
Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice, with no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
Alternative products
Closest matches in this category on price and capability. Not sure which way to go? Our technical team will talk it through.


Kramer VP-440X 18G 4K Presentation Switcher/Scaler with HDBaseT & HDMI Simultaneous Outputs

ATEN CS1142DPH4C 2-Port USB 5K DisplayPort/HDMI Dual Display Universal Secure KVM Switch with CAC (PSD PP v4.0 Compliant)

Kramer SWT3-31-HU 3x1 4K60 USB-C/HDMI Switcher
Need help specifying this for your space?
Ask Andrew. He knows the full catalogue and can advise on installation, mounting and compatible AV systems.
Rated by people who bought from us
Every review is collected independently by Trustpilot from people who have bought from us. Read them there →