# BlueOptics SFP2121BU5MS Singlemode OS2 LC-LC Fibre Optic Patch Cable 5 m Yellow

**URL:** https://aio.lv/en/product--blueoptics-sfp2121bu5ms--12536917
**Data updated:** 2026-06-25 19:50 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP2121BU5MS
**EAN:** 4063232609065
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp2121bu5ms--12536917

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP2121BU5MS is a 5-meter singlemode OS2 fibre optic patch cable featuring LC-UPC to LC-APC connectors. Built with high-quality G.657.A1 fibre and a 9 µm core, it ensures reliable data transmission with low insertion loss. Designed for high-performance networking, this yellow LSZH cable is ideal for professional fibre optic installations requiring precision and durability.

## Long description

The BlueOptics SFP2121BU5MS is a high-quality 5-meter singlemode OS2 fibre optic patch cable designed for reliable and efficient data transmission in professional networking environments. Featuring LC-UPC to LC-APC connectors, this cable utilizes premium G.657.A1 fibre with a 9 µm core to ensure minimal signal attenuation and high signal integrity. The yellow LSZH (Low Smoke Zero Halogen) jacket provides both durability and safety, making it an essential component for modern fibre optic infrastructures.
Advantages
This patch cable offers exceptional performance due to its high-grade ceramic ferrules and precise manufacturing standards. The use of G.657.A1 fibre allows for tighter bend radii without compromising signal quality, which is beneficial in dense cabling environments. Furthermore, the inclusion of a measurement protocol ensures that each cable meets strict insertion loss requirements, providing peace of mind for critical network deployments. The LSZH material enhances safety by reducing toxic smoke emissions in the event of fire.
Suitable for
High-speed data centre interconnects
Enterprise local area networks
Telecommunications infrastructure
Fibre-to-the-Home (FTTH) installations
Professional server room cabling
This cable may not be suitable for outdoor environments where it is directly exposed to harsh weather conditions, UV radiation, or mechanical stress without additional protective conduit. It is also not intended for use with multimode networking equipment, as it is strictly designed for singlemode OS2 applications.
Key specifications
Length: 5 m
Fibre type: Singlemode OS2 (G.657.A1)
Core diameter: 9 µm
Connector types: LC-UPC to LC-APC
Jacket material: LSZH (Low Smoke Zero Halogen)
Colour: Yellow
Insertion loss: Less than 0.2 dB
How to use
To use the cable, carefully remove the protective dust caps from the LC connectors. Ensure that both the connector tips and the ports on your networking hardware are clean and free of dust or debris. Gently insert the connector into the corresponding port until you hear a soft click, indicating a secure connection. Avoid pulling the cable tightly or bending it beyond its recommended radius to maintain optimal performance.
What to consider before purchase
Verify the connector type required by your hardware (LC-UPC/APC compatibility).
Ensure the 5-meter length is sufficient for your specific cable path.
Confirm that your networking equipment supports singlemode OS2 fibre.
Check if your installation environment requires LSZH-rated cabling for fire safety compliance.
Usage recommendations
Always inspect and clean fibre optic connectors with appropriate cleaning tools before every connection to prevent signal degradation caused by contamination.

## Specifications

| Feature | Value |
|---|---|
| Connector material | Ceramic |
| Insertion loss | 0.2 dB |
| Fiber mode structure | Single-mode |
| Core diameter | 9 µm |
| Cladding diameter | 125 µm |
| Fibre optic type | G.657.A1 |
| Return loss | 30 dB |
| Connector polish type | APC/UPC |

### Features

| Feature | Value |
|---|---|
| Cable length | 5 m |
| Connector 1 | LC |
| Connector 2 | LC |
| Product colour | Yellow |
| Jacket material | Low smoke zero halogen (LSZH) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

## FAQ

### How much does the BlueOptics SFP2121BU5MS Singlemode Fibre Optic Cable 5 m 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 — 439 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 27.07.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable length, connector 1, connector 2, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12536917/68899424_large.webp