# Extralink InfiniBand/fibre optic cable EX.3678, FTTH G.657.A1, 5 m, SC to LC, full duplex, yellow

**URL:** https://aio.lv/en/product--extralink-ex3678--10844316
**Data updated:** 2026-03-26 06:18 (EET)
**Category:** Network Cables
**Manufacturer:** Extralink
**Manufacturer code:** EX.3678
**EAN:** 5902560363678
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--extralink-ex3678--10844316

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Single-mode Extralink fibre optic cable EX.3678 for FTTH installations, 5 m length. Uses G.657.A1 fibre for improved bend performance and features SC connector on one end and LC on the other for full-duplex links. Suitable for InfiniBand and optical network runs, patching between equipment, and short-distance backbone or customer premises connections.

## Long description

Extralink InfiniBand/fibre optic cable EX.3678 is a single-mode patchcord designed for FTTH installations and short-distance optical links. The 5 m cable uses G.657.A1 fibre that provides improved bend performance compared with standard single-mode fibres. Terminated with an SC connector on one end and an LC connector on the other, the cable supports full-duplex transmission and is suitable for connecting optical equipment such as switches, media converters, OLTs and ONUs/ONTs.
Advantages
The cable combines a compact 3.0 mm jacket with G.657.A1 single-mode fibre to deliver reliable signal integrity and enhanced bending tolerance in confined routing environments. SC to LC termination enables easy integration between devices with different connector types, while the full-duplex pairing ensures simultaneous transmit and receive channels. The yellow jacket provides standard colour coding for single-mode links, simplifying identification in multi‑cable installations.
Suitable for
 FTTH drop and in-premises connections between OLT and ONU/ONT
 Patching between optical switches, routers and media converters
 Short-distance backbone or equipment interconnects in data centres and telecom racks
 InfiniBand or other single-mode optical links requiring SC-to-LC connections
Key specifications
 Fibre type: single-mode G.657.A1
 Length: 5 m
 Connector types: SC (one end) to LC (other end)
 Transmission: full-duplex (separate Tx/Rx channels)
 Jacket colour: yellow (single-mode standard)
 Cable diameter: 3.0 mm
How to use
Inspect connector endfaces before installation and clean if necessary to avoid contamination-related signal loss. Route the cable without sharp bends; although G.657.A1 fibre tolerates tighter radii than standard single-mode fibre, maintain smooth curves and avoid kinks. Plug the SC connector into the SC adapter or equipment port and the LC connector into the corresponding LC port, ensuring correct orientation and secure mating. Verify link status and optical power levels with appropriate test equipment after connection.
Usage recommendations
For best long-term performance, avoid repeated flexing near connector ends and secure the cable to prevent strain. Use dust caps when connectors are not mated and follow equipment manufacturer guidelines for port handling and optical power budgets.

## Specifications

| Feature | Value |
|---|---|
| Full duplex | Yes |
| Connector material | Ceramic |
| Fiber mode structure | Single-mode |
| Fibre optic type | G.657.A1 |
| Connector polish type | UPC |

### Features

| Feature | Value |
|---|---|
| Cable length | 5 m |
| Cable type | FTTH |
| Connector 1 | SC |
| Connector 2 | LC |
| Product colour | Yellow |
| Jacket material | Nylon/Polyvinyl Chloride (PVC) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Other features

| Feature | Value |
|---|---|
| Cable diameter | 3 mm |

### Packaging content

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

## FAQ

### How much does the Extralink EX.3678 fibre optic cable 5 m SC–LC cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 10.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 Extralink 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 Extralink 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 length, cable type, 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.

## Image

https://aio.lv/img/cache/product/10844316/60223717_large.webp