# Fibre optic patch cable BlueOptics SFP3131BU3MK 3 m OS2 LC–LC yellow, 9 µm, full duplex

**URL:** https://aio.lv/en/product--blueoptics-sfp3131bu3mk--5038816
**Data updated:** 2025-12-30 05:52 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP3131BU3MK
**EAN:** 4063232617077
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp3131bu3mk--5038816

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

BlueOptics SFP3131BU3MK is a 3 m OS2 single‑mode fibre optic patch cable with LC connectors on both ends and a 9 µm core diameter. The yellow, full‑duplex cable is suitable for InfiniBand and other high‑speed single‑mode links, providing reliable low‑loss connections for data centres, telecom and server interconnects.

## Long description

BlueOptics SFP3131BU3MK is a 3 m single‑mode (OS2 / G.657.A1) fibre optic patch cord with duplex LC/UPC connectors on both ends. The yellow, 9 µm core cable is laser‑optimized for 1310 nm and 1550 nm transmission and is intended for reliable low‑loss interconnection of patch panels, optical transceivers and other single‑mode links in data centres, telecom and server environments.
Advantages
The cable features a flame‑retardant LSZH jacket for reduced smoke and no halogen release in case of fire. It delivers low attenuation (0.4 dB/km typical), low insertion loss and high return loss; connector polish options (UPC or 8° APC) allow further return‑loss optimization. Branded single‑mode fibres (e.g. Corning, Fujikura, YOFC) and precision zirconia ferrules provide high reliability and up to 1500 mating cycles. Each unit is tested with interferometer and OTDR and shipped with measured insertion‑loss and return‑loss values.
Suitable for
Interconnecting optical transceivers (LC to LC) in servers and switches
Patch panel connections in data centres and telecom racks
Single‑mode links using 1310 nm or 1550 nm wavelengths
High‑speed single‑mode applications such as InfiniBand and fibre channel
Key specifications
Length: 3 m
Fiber type: Single‑mode OS2 / G.657.A1, 9 µm (E9/125 µm)
Connectors: Duplex LC/UPC to LC/UPC
Color: Yellow
Attenuation: typically 0.4 dB/km
Jacket: LSZH (flame‑retardant, low smoke, halogen‑free)
Standards: Telcordia GR‑326‑Core, IEC-61034, IEC-754-1, IEC 60332‑1, IEC 60332‑3, IEC/EN 60950, RoHS
How to use
Route the duplex LC‑LC patch cord between the required LC ports of patch panels, switches or transceivers, taking care to maintain the correct transmit/receive orientation. Avoid tight bends and mechanical stress on the cable and secure it with appropriate cable management to prevent excess strain. If custom length or alternate connector polish is required, order accordingly before deployment.
Usage recommendations
Store and install the cable in a clean environment to keep connector endfaces free of dust and contaminants; inspect and clean connectors with appropriate fibre‑optic cleaning tools before mating to ensure optimal insertion loss and return loss performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.03 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 | 3 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 BlueOptics SFP3131BU3MK fibre optic cable 3 m cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 23.07.2026 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/5038816/59302765_large.webp