# Fibre optic cable BlueOptics SFP3131BU2MK — OS2 singlemode 2 m, LC–LC, 9 µm, full duplex

**URL:** https://aio.lv/en/product--blueoptics-sfp3131bu2mk--5038817
**Data updated:** 2025-12-30 05:52 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP3131BU2MK
**EAN:** 4063232617282
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp3131bu2mk--5038817

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

BlueOptics SFP3131BU2MK is a 2 m OS2 singlemode fibre optic cable with LC connectors on both ends and a 9 µm core diameter. Designed for full-duplex data transmission, it suits InfiniBand and other high-speed network links requiring singlemode performance. Use it to connect transceivers, switches or patch panels for reliable low-loss links over short to medium distances.

## Long description

BlueOptics SFP3131BU2MK is a 2 m single-mode (OS2 / G.657.A1) fibre optic patch cord with duplex LC/UPC connectors and a 9/125 µm laser-optimized glass core. The yellow LSZH-jacketed cable is designed for full-duplex transmission of 1310 nm and 1550 nm signals and is intended for connecting optical transceivers, switches or patch panel ports with low insertion loss.
Advantages
The cable offers low attenuation (0.4 dB/km specified) and high return loss, with connector polish options available to further optimise return loss. High-quality branded glass fibres and manufacturer-grade connectors with zirconia ceramic ferrules are used to ensure reliable, low-loss transmission and a long mating lifecycle. Each cable is factory-tested (interferometer and OTDR) and shipped with a measurement protocol for insertion loss and return loss.
Suitable for
 Connecting optical transceivers (SFP, SFP+, etc.)
 Patching between switches, routers and patch panels
 Short- to medium-distance single-mode links at 1310/1550 nm
 High-speed network links requiring OS2/G.657.A1 fibre
Key specifications
 Type: Single-mode duplex fibre (OS2 / G.657.A1)
 Length: 2 m
 Connectors: LC/UPC to LC/UPC duplex
 Core/cladding: 9/125 µm (E9/125 µm)
 Attenuation: 0.4 dB/km (typical)
 Jacket: LSZH (yellow)
 Standards: Telcordia GR-326-Core; IEC-61034; IEC-754-1; IEC 60332-1; IEC 60332-3; IEC/EN 60950; RoHS
How to use
Inspect connectors and cable for visible damage before installation. Plug LC connectors into the optical transceivers or patch panel ports until they click securely. Maintain bend radius guidelines and avoid tight bends or kinks in the fibre. For link verification, compare the supplied measurement protocol with in-situ insertion loss and return loss measurements after installation.
Usage recommendations
Store and handle the LSZH cable in a clean environment, avoid contaminating connector endfaces, and clean ferrules with appropriate fibre cleaning tools before mating. For custom lengths or specific connector polish (UPC/APC) requests, contact the supplier.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.02 kg |
| Certification | IEC-61034,IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950 |
| Full duplex | Yes |
| Package weight | 30 g |
| Cable length | 2 m |
| Product colour | Yellow |
| Connector material | Ceramic |
| Connector 1 | LC |
| Connector 2 | LC |
| Cable diameter | 2 mm |
| Fiber mode structure | Single-mode |
| Core diameter | 9 µm |
| Cladding diameter | 125 µm |
| Jacket material | Low smoke zero halogen (LSZH) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Quantity per pack | 1 pc(s) |
| Wavelengths supported | 850 |
| Fibre optic type | OS2 |
| Sustainability certificates | RoHS |
| Doesn't contain | Halogen |
| Connector polish type | UPC |

## FAQ

### How much does the Fibre optic cable BlueOptics SFP3131BU2MK cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 24.07.2026 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/5038817/59302770_large.webp