# B-TECH AV SYSTEM X Extension Kit for BT8390 Mounting Rail, Black

**URL:** https://aio.lv/en/product--b-tech-av-bt8390-extb--12525297
**Data updated:** 2026-06-17 16:33 (EEST)
**Category:** Other goods
**Manufacturer:** B-TECH AV
**Manufacturer code:** BT8390-EXT/B
**EAN:** 5019318305917
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 25.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--b-tech-av-bt8390-extb--12525297

## 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 B-TECH AV SYSTEM X extension kit is designed to extend the BT8390 mounting rail system. This black mounting accessory provides a reliable solution for professional display installations, ensuring seamless integration and structural support for wall-mounted configurations. It is an essential component for expanding your AV mounting setup with precision and durability.

## Long description

B-Tech SYSTEM X - Extension Kit for BT8390 - Black. Product type: Mounting rail, Product colour: Black, Mounting type: Wall. Width: 12 mm, Depth: 8 mm, Length: 180 mm
Key Features
Combines BT8390 Horizontal Mounting Rails to create longer lengths
Joining bars are made from 6mm thick steel
Spring-loaded bearings allow the joining bars to move easily into position
Rails slide easily into position to create a seamless join
High-end aesthetic quality
Securely lock the mounting rails in place using the internal grub screws
Seamless finish maintains the premium quality of the product
All mounting hardware included
6 joining bars supplied with each kit
6 Joining Bars Supplied

The BT8390-EXT is an extension kit designed to extend rails to a desired length, perfect for creating large menu boards, video walls and other digital signage installations. The kit consists of 6 steel joining bars which fit into the channels on either side of the mounting rail. The joining bars are then held firmly together using the internal grub screws. The underside of the joining bars feature spring-loaded bearings which allows the bars to move easily into their fixed position.

## Specifications

| Feature | Value |
|---|---|
| Width | 12 mm |
| Depth | 8 mm |
| Product colour | Black |
| Length | 180 mm |
| Mounting type | Wall |
| Product type | Mounting rail |
| Harmonized System (HS) code | 83024200 |

## FAQ

### How much does the B-TECH AV SYSTEM X Extension Kit for BT8390 cost, and is it available for purchase?

The price is 30.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 B-TECH AV 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 B-TECH AV 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

### Where can I download the instructions for B-TECH AV SYSTEM X Extension Kit for BT8390?

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/12525297/68882779_large.webp