# Fibre optic cable EFB Elektronik O0348.20 — OM4 multimode, ST–ST, 20 m

**URL:** https://aio.lv/en/product--efb-elektronik-o034820--3932029
**Data updated:** 2026-01-07 09:56 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** O0348.20
**EAN:** 4049759065423
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-o034820--3932029

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.99 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

EFB Elektronik O0348.20 is a 20 m OM4 multimode fibre optic cable with ST connectors on both ends. Designed for high-speed InfiniBand and fiber-optic links, it uses 50 µm core fibres to support increased bandwidth and reduced modal dispersion. Suitable for data centers, network backbones and high-throughput connections requiring reliable short- to medium-range transmission.

## Long description

EFB Elektronik O0348.20 is a 20 m OM4 multimode fibre optic cable with ST connectors on both ends. It uses 50 µm core multimode fibres designed to support high-bandwidth short- to medium-range links such as data center interconnects, InfiniBand and other high-throughput fiber-optic connections. The cable conforms to structured cabling principles for fibre jumpers and is built with an LSZH sheath and aramid reinforcement for mechanical stability and flame retardance.
Advantages
The OM4 multimode construction provides increased bandwidth and reduced modal dispersion compared with lower multimode grades. ST–ST connectors offer reliable bayonet-style coupling for legacy and industrial equipment. The cable features aramid yarn reinforcement for improved tensile resistance and long-term stability, and an LSZH (halogen-free, flame-retardant) sheath meeting IEC-60754-2, IEC-60332-1 and IEC-61034 requirements. Each patch cord is 100% tested and supplied with an individual test protocol.
Suitable for
 Data centre links and rack-to-rack connections
 InfiniBand and high-throughput short-range applications
 Network backbones and aggregation where OM4 performance is required
 Environments requiring halogen-free cabling and enhanced mechanical strength
Key specifications
 Brand: EFB Elektronik
 Model / MPN: O0348.20
 Length: 20 m
 Fibre type: OM4 multimode (50 µm core)
 Connector type: ST — ST
 Sheath: LSZH (halogen-free, flame-retardant) meeting IEC-60754-2, IEC-60332-1, IEC-61034
 Reinforcement: aramid yarn for tensile resistance
 Quality / connector grade: Singlemode/Multimode grades per IEC-61753 series (connector quality B/2 for singlemode, A/1 for multimode per draft references)
 Testing: 100% tested with individual test protocol
 EAN: 4049759065423
How to use
Inspect connectors and cable for damage before installation. Route the fibre jumper between the device port and the passive interface following the shortest practical path to minimize bending and stress. Use appropriate cable management and bend-radius protection; avoid sharp bends and tensile loads beyond the aramid-reinforced design limits. Plug the ST connectors into compatible ST ports using the bayonet coupling until they lock, and verify link status and signal quality using appropriate testing equipment and the supplied individual test report.
Usage recommendations
For best performance, use this OM4 ST–ST patch cord for short- to medium-range high-bandwidth links in controlled environments such as data centres and equipment rooms, maintain bend radii greater than the manufacturer’s minimum, and consult the supplied test protocol to confirm connector loss values before deployment.

## Specifications

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -20 - 70 |
| Cable length | 20 m |
| Product colour | Purple |
| Connector 1 | ST |
| Connector 2 | ST |
| Core diameter | 50 µm |
| Cladding diameter | 125 µm |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Fibre optic type | OM4 |

## FAQ

### How much does the Fibre optic cable EFB Elektronik O0348.20 OM4 20 m cost, and is it available for purchase?

The price is 54.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 17.07.2026 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 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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