# AV transmitter & receiver Kramer Electronics EXT3-U-KIT Wired USB Type-A Type-B

**URL:** https://aio.lv/en/product--kramer-50-00015690--9494303
**Data updated:** 2025-12-30 08:37 (EET)
**Category:** Audio & Video Extenders
**Manufacturer:** Kramer
**Manufacturer code:** 50-00015690
**EAN:** 7291063099176
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 730.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 603.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kramer-50-00015690--9494303

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.99 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Kramer Electronics EXT3-U-KIT is an AV transmitter and receiver designed for wired connectivity. It features USB Type-A and Type-B connectors, powered by DC. Compact dimensions of 62.2 mm width, 51.8 mm depth, and 24.4 mm height make it suitable for various setups.

## Long description

The Kramer Electronics EXT3-U-KIT is an AV transmitter and receiver set for extending USB 2.0, RS-232 and audio signals over twisted-pair CAT cable with two-way powering. The kit includes an EXT3-U-T transmitter that converts a USB input into a CAT signal and an EXT3-U-R receiver that converts the CAT signal back to USB. The units are compact and intended for wired connectivity in applications requiring extended reach between a host and USB peripherals.
Advantages
The EXT3-U-KIT supports USB 2.0 extension alongside RS-232 and audio over a single CAT cable, reducing cable clutter and simplifying installations. Two-way powering over the twisted pair allows flexible power sourcing from either end. The compact enclosures and standard USB Type-A/Type-B connectors make the kit compatible with common host devices and peripherals.
Suitable for
 Extending USB 2.0 devices such as printers, cameras, and flash drives over CAT cable
 Integrating RS-232 control between remote devices and control systems
 Transmitting analog audio along with USB and serial signals in AV setups
 Installations requiring remote powering of the receiver or transmitter over twisted pair
Key specifications
 Product: AV transmitter & receiver kit (EXT3-U-KIT)
 Supported signals: USB 2.0, RS-232, analog audio
 Connectors: USB Type-A and Type-B (per product title)
 Powering: Two-way powering over twisted pair (CAT cable); DC power input supported
 Manufacturer: Kramer Electronics
 MPN: 50-00015690
 EAN: 7291063099176
 Dimensions (each unit): 62.2 mm (W) x 51.8 mm (D) x 24.4 mm (H)
How to use
Connect the transmitter (EXT3-U-T) to the USB host using the appropriate USB Type-A or Type-B cable, and connect the receiver (EXT3-U-R) to the peripheral device with the matching USB connector. Link the transmitter and receiver using a single CAT twisted-pair cable. Provide DC power to one or both units or use two-way powering over the CAT cable according to installation needs. Ensure RS-232 and audio connections are made where required and verify signal continuity before operation.
Usage recommendations
Use high-quality shielded CAT cable (e.g., Cat5e or better) for reliable signal extension, follow distance and bandwidth guidelines for USB 2.0, and confirm correct wiring and power configuration to prevent communication or power issues.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| RJ-45 input ports | 1 |
| USB connector type | USB Type-A, USB Type-B |
| USB ports quantity | 5 |
| Connectivity technology | Wired |

### Power

| Feature | Value |
|---|---|
| Power source type | DC |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.2 kg |
| Height | 24.4 mm |
| Width | 62.2 mm |
| Depth | 51.8 mm |

### Features

| Feature | Value |
|---|---|
| Type | AV transmitter & receiver |

## FAQ

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

The price is 730.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 17.07.2026 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. 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: rj-45 input ports, weight, type, 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.

## Image

https://aio.lv/img/cache/product/9494303/64381342_large.webp