# BlueOptics SFP3131FU2.5MK InfiniBand fibre optic cable 2.5 m LC

**URL:** https://aio.lv/en/product--blueoptics-sfp3131fu25mk--5104209
**Data updated:** 2026-03-07 15:13 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP3131FU2.5MK
**EAN:** 4063232238227
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp3131fu25mk--5104209

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP3131FU2.5MK is a 2.5 m InfiniBand fibre optic cable featuring LC connectors. It supports OM4 fibre type and offers full duplex communication, making it ideal for high-speed data transmission in data centers and networking environments.

## Long description

The BlueOptics SFP3131FU2.5MK is a 2.5 meter InfiniBand fibre optic patch cord with duplex LC/UPC to LC/UPC connectors and OM4 (G50/125 µm) laser-optimized multimode fibre. Designed for data center and enterprise networking, the cable supports full-duplex 850 nm transmission with low attenuation and high return‑loss characteristics. The LSZH (low smoke zero halogen) jacket reduces smoke and prevents halogen release in the event of fire, making it suitable for confined or densely cabled environments.
Advantages
This OM4 LC–LC duplex patch cord offers low insertion loss (approx. 2.5 dB/km) and high return loss, with connector polish options that allow further optimization. Connectors use zirconia ceramic ferrules for reliable alignment and a long mating life of up to 1500 cycles. Cables are manufactured with branded multimode glass from established vendors and undergo interferometer and OTDR testing; each shipped cable includes a measurement protocol for input loss and return loss. The LSZH jacket improves fire safety compared with PVC jackets.
Suitable for
InfiniBand links in data centers and HPC clusters
Short-range multimode connections (server to switch, patch panel to transceiver)
High-density optical patch panels and cable management systems
Environments requiring low-smoke, halogen-free cabling
Key specifications
Length: 2.5 m
Fibre type: OM4 (G50/125 µm), laser-optimized multimode fiber
Connectors: Duplex LC/UPC to LC/UPC
Polish: UPC (polish optimized for low back reflection); APC option available for higher return loss where applicable
Wavelength: 850 nm multimode transmission
Attenuation: approx. 2.5 dB/km
Jacket: LSZH (low smoke zero halogen), flame-retardant
Durability: zirconia ceramic ferrule, up to 1500 mating cycles
Testing: interferometer and OTDR test measurements supplied with each cable
How to use
Verify that both ends of the duplex LC patch cord are clean and free of dust before installation. Align the LC connectors with the corresponding LC ports on transceivers, switches or patch panels and insert until a click confirms a secure connection. Ensure the correct polarity for duplex links (A to B) and route the cable through cable management to avoid tight bends; maintain the manufacturer’s minimum bend radius. After installation, verify link performance using appropriate diagnostic tools and compare measured insertion loss to the supplied measurement protocol.
Usage recommendations
Store and handle the fibre patch cord using protective caps on unused connectors. Clean connector endfaces with approved fibre cleaning tools before mating. Use LSZH cabling in enclosed spaces or where fire safety regulations recommend low-smoke, halogen-free materials. For distances or applications beyond multimode OM4 specifications, consider singlemode fibre or transceiver options appropriate for required reach.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.02 kg |
| Full duplex | Yes |
| Package weight | 20 g |
| Cable length | 2.5 m |
| Product colour | Coral |
| Connector 1 | LC |
| Connector 2 | LC |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Quantity per pack | 1 pc(s) |
| Fibre optic type | OM4 |
| Connector polish type | UPC |

## FAQ

### How much does the InfiniBand cable BlueOptics SFP3131FU2.5MK cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 508 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 29.07.2026 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 BlueOptics 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 BlueOptics 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/5104209/64361186_large.webp