# AV transmitter & receiver Kramer Electronics EXT3-TR 3840x2160 70m

**URL:** https://aio.lv/en/product--kramer-50-80572390--9110063
**Data updated:** 2026-04-24 13:02 (EEST)
**Category:** Audio & Video Extenders
**Manufacturer:** Kramer
**Manufacturer code:** 50-80572390
**EAN:** 7291063098902
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 579.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 478.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kramer-50-80572390--9110063

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Kramer Electronics EXT3-TR is an AV transmitter and receiver supporting a maximum resolution of 3840 x 2160 pixels over a distance of 70 meters. It features wired connectivity with HDMI 2.0b and USB Type-A/B connectors. Operating at 12V with a current of 2A, its compact design (190mm x 116mm x 27mm) makes it suitable for various AV applications.

## Long description

The Kramer EXT3-TR is a high-performance HDBaseT 3.0 AV transceiver that extends 4K@60Hz (4:4:4) HDMI, USB 2.0, RS-232, and IR signals over twisted-pair copper cable. The unit can be configured as either the transmitter or the receiver: in transmitter mode it converts input signals to an HDBaseT 3.0 stream, and in receiver mode it restores the HDBaseT stream back to the original HDMI, USB, RS-232 and IR interfaces. It supports video extension up to 40 m (130 ft) over CAT copper cables at up to 4K@60Hz (4:4:4) and is designed for professional AV installations requiring long-reach signal distribution.
Advantages
EXT3-TR provides a single-cable extension solution for high-resolution HDMI video, multichannel audio, USB peripherals, and control interfaces, reducing cabling complexity. It supports HDMI 2.0 feature set including HDCP 2.3, EDID and CEC passthrough, HDR10 and deep color, and delivers up to 32 channels of uncompressed digital audio. The device offers HDMI mirroring via a loop output for local monitoring, flexible USB 2.0 host placement for remote cameras or HID devices, bidirectional RS-232 and IR for control, and status LEDs for simplified troubleshooting. Its fan-less MegaTOOLS enclosure allows dropped-ceiling or rack-side-by-side installation for neat, low-noise deployments.
Suitable for
Professional AV distribution in conference rooms, auditoriums, and lecture halls
Digital signage and public displays requiring long-reach 4K video
Remote camera, audio, or USB HID device extension for streaming or control
Integrator setups that need RS-232 and IR control over distance
Когда может не подойти
EXT3-TR is not intended for wireless extension — it requires high-quality twisted-pair copper (CAT) cabling and performs to specified reach only when recommended cables and installation practices are used. For runs significantly longer than the specified distance or environments without reliable copper infrastructure, a different optical-fiber solution may be more appropriate.
Key specifications
Video support: up to 4K@60Hz (4:4:4), HDMI 2.0 feature set, HDR10, deep color, 3D
Audio: up to 32 channels of uncompressed digital audio, Dolby TrueHD and DTS-HD pass-through
Extension technology: HDBaseT 3.0 over twisted-pair copper
Maximum copper extension (typical): up to 40 m (130 ft) at 4K@60Hz (4:4:4)
USB: USB 2.0 extension with host connection at either transmitter or receiver side
Control interfaces: bidirectional RS-232 and bidirectional IR
Local HDMI loop output for mirroring
Power: 12 VDC, 2 A
Enclosure: fan-less MegaTOOLS for dropped-ceiling or side-by-side 1U rack mounting
Dimensions: 190 mm x 116 mm x 27 mm
How to use
Install the unit as either the transmitter or receiver according to the installation plan. Connect the HDMI source and any local USB devices to the transmitter-side ports, or connect the HDMI display and remote USB devices to the receiver-side ports depending on configuration. Use high-quality CAT copper cable between transmitter and receiver and power each unit with the specified 12 VDC supply. Use the loop HDMI output on the transmitter for a local monitor if required. Configure EDID, HDCP and audio settings from the source or connected devices as needed and use the status LEDs to verify link and host activity during setup.
What to consider before purchase
Required maximum cable length and whether copper CAT cabling meets site needs
Compatibility with source and display HDMI features (HDCP, HDR, EDID handling)
Need for USB 2.0 extension and which end (transmitter or receiver) will host the active USB device
Control requirements for RS-232 and IR over distance
Rack or ceiling mounting method and available space for the MegaTOOLS enclosure
Usage recommendations
For reliable 4K@60Hz (4:4:4) performance use recommended Kramer copper cables, keep cable runs within specified distances, and mount the units in ventilated locations using the MegaTOOLS options. Verify EDID and HDCP settings between source and display during commissioning and use the local HDMI loop for onsite monitoring or daisy-chaining additional units.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| HDMI in | 1 |
| Number of HDMI outputs | 1 |
| RJ-45 input ports | 1 |
| RJ-45 output ports | 1 |
| USB connector type | USB Type-A, USB Type-B |
| HDMI version | 2.0b |
| USB version | 2.0 |
| Remote (IR) output | 1 |
| USB ports quantity | 4 |
| RS-232 output ports | 1 |
| 3.5 mm (1/8-inch) out | Yes |
| HDBaseT port | Yes |
| Connectivity technology | Wired |

### Power

| Feature | Value |
|---|---|
| USB powered | Yes |
| Input current | 2 |
| Operating voltage | 12 V |
| Current | 2 A |
| USB Power Delivery (USB PD) | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.6 kg |
| Height | 27 mm |
| Width | 190 mm |
| Depth | 116 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 90 |
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 40 |
| Storage relative humidity (H-H) | 10 - 90 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1110 g |
| Package depth | 162 mm |
| Package height | 52 mm |
| Package width | 345 mm |
| Quantity per pack | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Type | AV transmitter & receiver |
| Maximum resolution | 3840 x 2160 |
| Maximum transfer distance | 70 m |
| Certification | Safety: CE
Environmental: RoHs and WEEE |
| Material | Aluminium |
| Product colour | Black |
| Bandwidth | 18 Gbit/s |
| Supported graphics resolutions | 3840 x 2160 |
| HDCP | Yes |
| Maximum refresh rate | 60 Hz |

## FAQ

### How much does the AV transmitter & receiver Kramer Electronics EXT3-TR cost, and is it available for purchase?

The price is 579.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 01.07.2026 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. 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. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: hdmi in, number of hdmi outputs, rj-45 input ports, rj-45 output ports, weight, type, maximum resolution, maximum transfer distance, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for AV transmitter & receiver Kramer Electronics EXT3-TR?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/9110063/64380183_large.webp