# BlueOptics SFP3131BU7.5MK InfiniBand fibre optic cable 7.5 m LC Yellow

**URL:** https://aio.lv/en/product--blueoptics-sfp3131bu75mk--5038813
**Data updated:** 2025-12-30 05:52 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP3131BU7.5MK
**EAN:** 4063232617374
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp3131bu75mk--5038813

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP3131BU7.5MK is a 7.5 m InfiniBand fibre optic cable featuring LC connectors. It utilizes G.657.A1 fibre type with a core diameter of 9 µm, ensuring full duplex communication. Ideal for high-speed data transmission in data centers and networking applications.

## Long description

BlueOptics SFP3131BU7.5MK is a 7.5 meter duplex fibre optic patch cord with LC/UPC to LC/UPC connectors and laser‑optimized single‑mode G.657.A1 fiber (9/125 µm). The yellow cable is intended for InfiniBand and other high‑speed data transmission applications and features a flame‑retardant LSZH jacket. It supports transmission at common wavelengths such as 1310 nm and 1550 nm and is available in multiple lengths, with 7.5 m as the supplied length.
Advantages
The cable offers low attenuation (approximately 0.4 dB/km), low insertion loss and high return loss; connector end‑face polish options (UPC or 8° APC) allow further return‑loss optimization. High‑quality branded fiber and precision connectors with zirconia ceramic ferrules are used to ensure reliable, low‑loss connections and a long mating cycle life. Each cable is tested with interferometer and OTDR and shipped with a measurement protocol for insertion and return loss. The LSZH jacket reduces smoke and no halogens are released in case of fire.
Suitable for
InfiniBand and high‑speed data center interconnects
Connecting optical transceivers and patch panel ports
Single‑mode fiber links requiring G.657.A1 bend‑insensitive fiber
Key specifications
Manufacturer: BlueOptics, MPN SFP3131BU7.5MK, EAN 4063232617374
Length: 7.5 m
Connector: Duplex LC/UPC to LC/UPC
Fiber type: Single‑mode G.657.A1 (E9/125 µm, 9 µm core)
Wavelengths: 1310 nm / 1550 nm
Attenuation: ~0.4 dB/km
Jacket: LSZH (flame‑retardant, low smoke, halogen‑free)
Standards: Telcordia GR‑326‑Core 4.4; IEC-61034, IEC-754-1, IEC 60332‑1, IEC 60332‑3, IEC/EN 60950; RoHS
How to use
Inspect connectors and ensure dust caps are removed before installation. Route the duplex LC cable between the transceivers or panel ports, observing fiber bend radius limits for G.657.A1 to avoid excess stress. Plug each LC connector into the corresponding LC receptacle until it clicks; ensure correct duplex orientation for transmit/receive pairs. After installation, verify link integrity using appropriate testing equipment and refer to the enclosed insertion loss and return loss measurement protocol.
Usage recommendations
Store and handle the patch cord without sharp bends, protect connector end‑faces from contamination, use LC dust caps when not connected, and follow standard cleaning procedures before mating. For installations in enclosed or populated spaces prefer LSZH jacketed cables to minimize smoke and toxic gas emission in case of fire.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.06 kg |
| Certification | IEC-61034,IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950 |
| Full duplex | Yes |
| Package weight | 60 g |
| Cable length | 7.5 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 | 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 SFP3131BU7.5MK cost, and is it available for purchase?

The price is 21.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 73 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 28.07.2026 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/5038813/64338375_large.webp