# Fibre optic adapter EFB Elektronik B71921L48 LC single-mode, Blue/Grey, 483×244×44.5 mm

**URL:** https://aio.lv/en/product--efb-elektronik-b71921l48--4804924
**Data updated:** 2026-01-13 21:26 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** EFB Elektronik
**Manufacturer code:** B71921L48
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 185.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 153.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-b71921l48--4804924

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

EFB Elektronik B71921L48 is a single-mode fibre optic adapter with LC connector type, supplied as one piece. The unit comes in blue and grey, with dimensions 483 × 244 × 44.5 mm. Designed for connecting and adapting LC single-mode fiber links in communications equipment, it provides reliable physical coupling for splicing, patching, or panel installation in network cabinets and racks.

## Long description

EFB Elektronik B71921L48 is a single-mode fibre optic adapter with LC connector type, supplied as a single unit. The adapter is designed to provide a stable physical coupling for LC single-mode fibres in patching panels, rack mount enclosures, and communication equipment. Finished in blue and grey with a compact profile measuring 483 × 244 × 44.5 mm, this adapter facilitates controlled insertion and alignment of LC connectors to maintain low insertion loss and consistent link performance in single-mode networks.
Advantages
The adapter offers precise alignment for LC single-mode ferrules, supporting reliable mating and repeatable connections. Its form factor and colour coding (blue/grey) help with visual identification and organised cable management in racks and distribution frames. Designed for installation in network cabinets, the adapter provides a fixed mounting footprint and protection for connector end-faces during operation and maintenance.
Suitable for
Single-mode fibre patch panels and rack-mounted enclosures
Data centres and telecommunications distribution frames
Splicing and temporary patching during network maintenance
Equipment cabinets where LC single-mode connections are required
Key specifications
Connector type: LC (single-mode)
Mode: Single-mode fibre
Colour: Blue and grey
Quantity: Supplied as one piece
External dimensions: 483 × 244 × 44.5 mm
How to use
Mount the adapter into the appropriate slot on a patch panel or rack tray according to the cabinet or panel manufacturer’s instructions. Insert LC connectors until a positive click is felt to ensure proper mating; confirm visual alignment and, if available, test insertion loss with appropriate optical test equipment. During installation and maintenance, handle connector end-faces with lint-free wipes and approved cleaning tools to avoid contamination that could increase attenuation or cause damage.
Usage recommendations
Use the adapter in clean, dry environments and maintain connector end-face cleanliness. Label and colour-code patching according to site standards to simplify identification. For critical links, verify optical performance after installation using an optical power meter or OTDR and follow manufacturer guidance for rack mounting and strain relief.

## Specifications

| Feature | Value |
|---|---|
| Height | 44.5 mm |
| Width | 483 mm |
| Depth | 244 mm |
| Product colour | Blue, Grey |
| Housing material | Metal |
| Connector type | LC |
| Fiber mode structure | Single-mode |
| Number of connectors | 48 |
| Category | OS2 |
| Duplex | Yes |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Fibre optic adapter EFB Elektronik B71921L48 LC cost, and is it available for purchase?

The price is 185.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 46 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 06.08.2026 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

## Image

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