# Fibre optic adapter ST EFB Elektronik 53202.3

**URL:** https://aio.lv/en/product--efb-elektronik-532023--3214235
**Data updated:** 2026-01-07 09:55 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** EFB Elektronik
**Manufacturer code:** 53202.3
**EAN:** 4049759023317
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-532023--3214235

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 12.08.2026 | free |
| Pickup points | 17.08.2026 | 1.89 EUR |
| Courier delivery to door | 17.08.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik 53202.3 is a metallic ST fibre optic adapter designed for multi-mode fiber applications. With dimensions of 9.6 mm width, 30.1 mm depth, and 9.6 mm height, it provides a reliable connection for various networking needs. Its robust construction ensures durability and optimal performance in data transmission.

## Long description

The EFB Elektronik 53202.3 is a metallic ST simplex multimode fibre optic adapter designed to provide a secure mechanical connection between ST-terminated multimode optical fibres. With compact dimensions (9.6 mm × 30.1 mm × 9.6 mm) and a metal housing, this adapter is intended for reliable use in multimode fibre patching and panel installations where ST connectors are required.
Advantages
The metal body offers mechanical durability and stable alignment of ST ferrules, reducing insertion loss and ensuring consistent optical contact. Its compact size makes it suitable for high-density mounting in patch panels or bulkhead applications. The adapter is compatible with standard multimode ST connectors and follows common mechanical tolerances for fibre optic connectivity.
Suitable for
 Multimode fibre patch panels
 Bulkhead and faceplate installations
 Equipment and enclosure front panels requiring ST simplex connections
Key specifications
 Brand: EFB Elektronik
 Manufacturer part number (MPN): 53202.3
 EAN: 4049759023317
 Connector type: ST simplex
 Fibre type: Multimode
 Material: Metal housing
 Dimensions (W × D × H): 9.6 mm × 30.1 mm × 9.6 mm
How to use
Install the adapter into the panel cut-out or bulkhead designed for ST simplex adapters, securing it according to the panel / chassis mounting method. Insert ST-terminated multimode fibre connectors into each end of the adapter until they click or seat firmly, ensuring correct ferrule alignment. For removal, withdraw the connector straight out to avoid disturbing the mating ferrule.
Usage recommendations
Use with standard multimode ST connectors and clean ferrule endfaces before mating to minimise insertion loss and back reflection. Avoid excessive mechanical stress on the adapter or connected fibres and ensure panels are mounted to prevent vibration or strain that could affect optical alignment.

## Specifications

| Feature | Value |
|---|---|
| Height | 9.6 mm |
| Width | 9.6 mm |
| Depth | 30.1 mm |
| Product colour | Metallic |
| Connector type | ST |
| Fiber mode structure | Multi-mode |
| Number of connectors | 1 |
| Duplex | No |
| Ferrule material | Ceramic |

## FAQ

### How much does the Fibre optic adapter ST EFB Elektronik 53202.3 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1000 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 12.08.2026 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

https://aio.lv/img/cache/product/3214235/64206939_large.webp