# Fibre optic cable BlueOptics SFP2121BU0.5MK 0.5 m LC OS2 9 µm

**URL:** https://aio.lv/en/product--blueoptics-sfp2121bu05mk--4469495
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP2121BU0.5MK
**EAN:** 4063232610801
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 16.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp2121bu05mk--4469495

## 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 SFP2121BU0.5MK is a high-quality fibre optic cable designed for reliable data transmission. With a length of 0.5 m, it features LC connectors and is suitable for OS2 fibre type with a core diameter of 9 µm. Ideal for high-speed networking applications.

## Long description

The BlueOptics SFP2121BU0.5MK 0.5 m LC OS2 9 µm is a single-mode fibre optic patch cord designed for short interconnections in high-speed networks. It uses LC connectors on both ends and a 9 µm core single-mode fibre suitable for OS2 applications. The 0.5 metre length and simplex LC–LC configuration make this cable suitable for connecting optical transceivers, patch panels and other fibre equipment where a reliable, low-loss short link is required. The cable is supplied in BlueOptics’ standard yellow jacket and built to industry safety and performance standards.
Advantages
This fibre patch cord delivers low attenuation and high return-loss performance typical for OS2 single-mode fibres, supporting transmission at common wavelengths such as 1310 nm and 1550 nm. Connectors are manufactured with zirconia ceramic ferrules for stable alignment and long mating life. The cable’s LSZH (low smoke zero halogen) jacket reduces toxic and corrosive emissions in case of fire and meets common regulatory norms. Each unit is tested after production with interferometer and OTDR methods and supplied with a measurement protocol documenting insertion loss and return loss.
Suitable for
Interconnecting optical transceivers in switches, routers and servers
Patching between patch panel ports in data cabinets or racks
Short-distance fibre links in data centres and communications rooms
FTTx or telecom applications requiring OS2 single-mode fibre
Key specifications
Fibre type: single-mode (OS2 / G.657.A1 compatible)
Core diameter: 9 µm
Connector type: LC to LC, simplex
Length: 0.5 m
Wavelengths supported: 1310 nm and 1550 nm
Jacket material: LSZH (low smoke, zero halogen)
Typical attenuation: approx. 0.4 dB/km
Polish options: UPC or APC polish available where applicable
Tested with OTDR and interferometer; measurement protocol included
How to use
Inspect both LC connector endfaces for dust or contamination and clean with an appropriate fibre cleaning tool if required. Insert the LC connectors into the corresponding transceiver or patch panel ports until a click confirms secure engagement. Route the cable to avoid sharp bends and maintain the manufacturer’s minimum bend radius to prevent increased loss. For removal, depress the connector latch and withdraw straight out to avoid damaging the ferrule or port.
Usage recommendations
Use the 0.5 m LC–LC OS2 patch cord for short, high-quality connections inside racks and patch panels. Keep connectors capped when not in use and store spares in a dust-free environment. For installations requiring extremely low return loss or long-term outdoor exposure, consider selecting the appropriate polish type and jacket specification to match the installation conditions.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.01 kg |
| Certification | IEC-61034,IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950 |
| Full duplex | No |
| Package weight | 20 g |
| Cable length | 0.5 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 | OS2 |
| Doesn't contain | Halogen |
| Connector polish type | UPC |
| Compliance certificates | RoHS |

## FAQ

### How much does the Fibre optic cable BlueOptics SFP2121BU0.5MK cost, and is it available for purchase?

The price is 19.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 143 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/4469495/64297849_large.webp