# Fibre optic cable EFB Elektronik O8303S50OS2 4x LC OS2 50 m Black Blue Yellow

**URL:** https://aio.lv/en/product--efb-elektronik-o8303s50os2--10900719
**Data updated:** 2026-01-06 11:18 (EET)
**Category:** Network Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** O8303S50OS2
**EAN:** 4049759307646
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 175.49 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 145.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-o8303s50os2--10900719

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik O8303S50OS2 is a high-quality fibre optic cable designed for InfiniBand applications. With a length of 50 meters, it features 4x LC connectors on both ends and is made with U-DQ(ZN) BH cable type. The OS2 fibre optic type ensures optimal performance with a core diameter of 9 µm, making it suitable for high-speed data transmission. Available in black, blue, and yellow, this cable is ideal for both professional and personal use.

## Long description

The EFB Elektronik O8303S50OS2 is a 50 m pre-assembled fibre optic trunk cable with 4x LC connectors on each end, designed for InfiniBand and other high-speed data transmission applications. Manufactured from U-DQ(ZN) BH cable and using OS2 single-mode fibres with a 9 µm core diameter, this cable is available in black, blue and yellow and is part of EFB's stocked standard line of high-quality assemblies.
Advantages
This pre-assembled OS2 fibre cable provides reliable single-mode performance over longer distances, low attenuation and consistent connector quality thanks to factory-assembled LC terminations. The stocked standard lengths simplify procurement and installation planning, while the U-DQ(ZN) BH cable construction offers mechanical protection and suitability for use in ducts and shafts.
Suitable for
 InfiniBand installations and high-speed data links
 Data centre trunking between racks and equipment
 Permanent links in cable ducts and shafts
 Network backbones requiring OS2 single-mode fibre
Key specifications
 Manufacturer: EFB Elektronik
 Model/MPN: O8303S50OS2
 Fibre type: OS2 (single-mode), core 9 µm
 Connectors: 4x LC to 4x LC
 Cable type: U-DQ(ZN) BH
 Length: 50 m
 Colour: Black, Blue, Yellow
 EAN: 4049759307646
How to use
Install the pre-assembled fibre trunk by routing the cable through the intended duct, shaft or rack pathway and secure it according to site practices to avoid sharp bends and strain. Plug the 4x LC connectors into the corresponding LC ports on your transceivers or patch panels. Verify continuity and signal levels with appropriate test equipment after installation.
Usage recommendations
Avoid bending the cable beyond its minimum bend radius, protect connectors from contamination before mating, and store or route the cable in environments compatible with U-DQ(ZN) BH construction to maintain long-term performance.

## Specifications

| Feature | Value |
|---|---|
| Fiber mode structure | Single-mode |
| Core diameter | 9 µm |
| Cladding diameter | 125 µm |
| Bending radius | 90 mm |
| Fibre optic type | OS2 |
| Test protocol included | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 50 m |
| Cable type | U-DQ(ZN) BH |
| Connector 1 | 4x LC |
| Connector 2 | 4x LC |
| Product colour | Blue, Yellow, Black |
| Plug and Play | Yes |
| Jacket material | Low smoke zero halogen (LSZH) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Cable shape | Round |

### Other features

| Feature | Value |
|---|---|
| Cable diameter | 6 mm |

### Certificates

| Feature | Value |
|---|---|
| Certification | ITU-T G.652.D |
| Compliance certificates | CE |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Fibre optic cable EFB Elektronik O8303S50OS2 cost, and is it available for purchase?

The price is 175.49 € (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 03.08.2026 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 EFB Elektronik 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 EFB Elektronik 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: cable type, cable length, connector 1, connector 2, 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 Fibre optic cable EFB Elektronik O8303S50OS2?

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/10900719/64091850_large.webp