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Empty image Kramer HDMI AV USB 2-way PoE Smart Transmitter & 2x1 Switcher EXT3-21-XR-TR
1,399.49 €

Kramer HDMI AV USB 2-way PoE Smart Transmitter & 2x1 Switcher EXT3-21-XR-TR

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Kramer HDMI AV USB 2-way PoE Smart Transmitter & 2x1 Switcher EXT3-21-XR-TR

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Kramer HDMI AV USB 2-way PoE Smart Transmitter & 2x1 Switcher EXT3-21-XR-TR

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Short description

Kramer EXT3-21-XR-TR is an HDMI AV USB 2-way PoE smart transmitter and 2x1 switcher designed for AV signal routing. It supports HDMI and USB connectivity, two input paths with switcher functionality, and PoE power for simplified installation. Intended for meeting rooms, classrooms and small AV systems, it enables seamless source selection and easy integration into networked AV setups.
Available for order: 2 pcs.
Warranty: 2 Years
SKU: 11518600
Manufacturer: Kramer
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer, Leasing for legal entities
Leasing for legal entities: from 48.7 euros per month
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Product information

Description

Kramer EXT3-21-XR-TR is an HDMI AV USB 2-way PoE smart transmitter and 2x1 switcher engineered for reliable AV signal routing in small to medium installations. The unit provides two HDMI/USB input paths with integrated switching logic and transmits audio-video and USB data over a networked AV link. PoE support simplifies deployment by allowing power delivery over the network cable, reducing the need for local power adapters. The device is intended for meeting rooms, classrooms and compact AV systems where source selection, USB peripheral sharing and simplified cabling are required.

Advantages

The EXT3-21-XR-TR combines HDMI and USB handling in a single compact transmitter with built-in 2x1 switcher functionality, enabling seamless selection between two sources without additional external switchers. Power-over-Ethernet capability streamlines installation and lowers cable clutter while preserving full HD video and multichannel audio transmission. Smart transmitter features support remote control and integration into managed AV networks, facilitating centralized routing and monitoring.

Suitable for

  • Small and medium meeting rooms requiring easy source switching and USB device sharing
  • Classrooms and training spaces with mixed HDMI and USB input devices
  • Huddle spaces and collaboration areas where PoE deployment reduces outlet needs
  • Networked AV systems that need compact transmitters with local switching

Key specifications

  • HDMI video transmission supporting standard resolutions for meeting-room applications
  • USB 2-way support for sharing USB peripherals between endpoints
  • 2x1 switching: two input paths with selectable source routing
  • Power-over-Ethernet (PoE) support for powered operation over a single network cable
  • Ethernet connectivity for networked AV integration and remote control
  • Compact form factor suitable for table- or rack-adjacent placement

How to use

Connect HDMI and USB sources to the device’s input ports and attach the unit to the AV network via the Ethernet port. If PoE is available from the network switch, the transmitter will receive power through the network cable; otherwise use an appropriate local power option if provided. Use the device’s switching controls or the integrated network management interface to select the active input. Route the transmitted HDMI and USB signals to a compatible receiver or networked endpoint to distribute audio, video and USB peripheral data to displays or host systems.

Usage recommendations

For best performance, use shielded CAT6 or higher network cabling for the AV link, ensure network switches provide the required PoE class, and confirm connected displays and USB devices support the intended resolutions and data rates. Regular firmware updates and centralized monitoring improve reliability in managed AV environments.

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Customer reviews

Customer questions

FAQ

How much does the Kramer EXT3-21-XR-TR HDMI AV USB 2x1 Switcher cost, and is it available for purchase?

The price is 1,399.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Kramer products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Kramer service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.