# BlueOptics SFP3131BU20MK InfiniBand fibre optic cable 20 m LC

**URL:** https://aio.lv/en/product--blueoptics-sfp3131bu20mk--5038818
**Data updated:** 2025-12-30 05:52 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP3131BU20MK
**EAN:** 4063232617398
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 27.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp3131bu20mk--5038818

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP3131BU20MK is a 20 m InfiniBand fibre optic cable featuring LC connectors and G.657.A1 fibre type. With a core diameter of 9 µm, it supports full duplex communication, making it ideal for high-speed data transmission in networking applications.

## Long description

BlueOptics SFP3131BU20MK is a 20 meter duplex LC-LC single-mode fiber optic patch cord with laser-optimized G.657.A1 fiber (E9/125 µm core) in yellow. The cable is designed for InfiniBand and other high-speed networking applications and supports transmission at 1310 nm and 1550 nm. The jacket is low-smoke, zero-halogen (LSZH) to reduce smoke and avoid halogen release in case of fire.
Advantages
The SFP3131BU20MK offers low attenuation (0.4 dB/km typical), low insertion loss and high return loss. Connectors use zirconia ceramic ferrules and branded components from established manufacturers to ensure reliability and up to 1500 mating cycles. Each patch cord is tested with interferometer and OTDR and shipped with a measurement protocol documenting insertion loss and return loss. The cable meets Telcordia GR-326-Core and common industry standards and norms including IEC and RoHS.
Suitable for
Connecting optical transceivers and patch panel ports
InfiniBand and high-speed data centre links
Single-mode point-to-point links at 1310/1550 nm
Environments requiring LSZH jackets for reduced smoke and no halogens
Key specifications
Length: 20 m
Connector: Duplex LC/UPC to LC/UPC
Fiber type: Single-mode G.657.A1 (E9/125 µm)
Core diameter: 9 µm
Wavelengths: 1310 nm / 1550 nm
Attenuation: 0.4 dB/km (typical)
Jacket: LSZH (yellow)
Standards: Telcordia GR-326-Core, IEC-61034, IEC-60754-1, IEC 60332 series, IEC/EN 60950, RoHS
How to use
Inspect connectors and ports for contamination before mating. Align and insert the duplex LC connectors into the corresponding LC ports on transceivers or patch panels until they click. Avoid sharp bends and maintain the fiber minimum bend radius to prevent excess loss; secure the cable to avoid strain on connectors. When removing, press the LC latch and pull straight out to avoid damage.
Usage recommendations
Store the patch cord coiled loosely and protected from dust and mechanical stress. Clean connector endfaces with appropriate fiber cleaning tools before each connection. For custom lengths or bulk installations, verify insertion loss requirements and request measurement reports to ensure link performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Certification | IEC-61034,IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950 |
| Full duplex | Yes |
| Package weight | 150 g |
| Cable length | 20 m |
| Product colour | Yellow |
| 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 | 1550, 1310 |
| Fibre optic type | G.657.A1 |
| Doesn't contain | Halogen |
| Connector polish type | UPC |
| Compliance certificates | RoHS |

## FAQ

### How much does the InfiniBand fibre optic cable BlueOptics SFP3131BU20MK cost, and is it available for purchase?

The price is 32.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 47 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 04.08.2026 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 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/5038818/64338396_large.webp