# Network Cable BlueOptics SFA21BM20 LC 20dB Silver

**URL:** https://aio.lv/en/product--blueoptics-sfa21bm20--10889093
**Data updated:** 2026-06-12 15:54 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA21BM20
**EAN:** 4063232044729
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 22.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfa21bm20--10889093

## 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 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFA21BM20 attenuator features a 20 dB attenuation level, ensuring optimal signal quality. It is equipped with LC connectors and comes in a sleek silver color, making it a reliable choice for network installations. Ideal for reducing signal loss in high-speed data transmission, this attenuator is perfect for both professional and personal use.

## Long description

The BlueOptics SFA21BM20 is a high-performance fiber optic attenuator designed to provide a precise 20 dB signal reduction for single-mode fiber optic networks. Engineered for reliability, this device utilizes high-quality LC/APC Simplex connectors and a durable Zirconia ceramic ferrule to ensure stable signal transmission across various network environments. By effectively managing optical power levels, it prevents receiver saturation in short-distance links and maintains optimal signal integrity for high-speed data transmission.
Advantages
This attenuator offers exceptional signal control by reducing light energy loss through absorption and scattering, which is critical for protecting sensitive equipment from excessive transmission power. Built with premium components from industry-leading manufacturers, it guarantees a long service life of up to 1500 mating cycles. The device is constructed with a flame-retardant LSZH jacket, ensuring safety by minimizing smoke emission and eliminating halogen release in the event of fire. Each unit undergoes rigorous testing, including interferometer and OTDR analysis, to ensure consistent performance and compliance with international telecommunication standards.
Suitable for
Reducing signal power in short-distance fiber optic links
Preventing receiver saturation in high-speed data transmission systems
Professional network installations requiring precise attenuation
Single-mode fiber optic infrastructures using G.652.D standards
This attenuator is specifically designed for single-mode fiber applications and may not be suitable for multi-mode fiber systems. Using this device in incompatible fiber types or with mismatched connector interfaces will result in significant signal loss or connection failure.
Key specifications
Attenuation level: 20 dB
Connector type: LC/APC Simplex
Fiber compatibility: Single-mode (9/125µm) G.652.D
Operating temperature range: -40°C to +75°C
Ferrule material: Zirconia ceramic
Jacket material: Flame-retardant LSZH
Compliance: IEC-61034, IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950, and RoHS
To use the BlueOptics SFA21BM20, simply insert the attenuator between the fiber optic cable and the receiving port of your network device. Ensure that both the connector and the port are clean and free of dust before connection to maintain optimal signal quality. The LC/APC interface ensures a secure fit, providing the necessary damping to stabilize your network link.
What to consider before purchase
Verify that your network infrastructure uses single-mode fiber cabling
Ensure your equipment utilizes LC/APC connector interfaces
Confirm that a 20 dB attenuation level is appropriate for your specific signal power requirements
Check the operating environment to ensure it falls within the -40°C to +75°C range
Usage recommendations
For the best results, always inspect and clean fiber optic connectors with appropriate cleaning tools before installation to prevent signal degradation caused by contaminants. Ensure the attenuator is securely seated to maintain the integrity of the optical path.

## Specifications

| Feature | Value |
|---|---|
| Temperature range (T-T) | -40 - 75 |
| Attenuation | 20 dB |

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |

### Other features

| Feature | Value |
|---|---|
| Connector(s) | LC |

### Technical details

| Feature | Value |
|---|---|
| Sustainability compliance | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 25 year(s) |

### Certificates

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

## FAQ

### How much does the Network Cable BlueOptics SFA21BM20 cost, and is it available for purchase?

The price is 26.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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

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

When making a choice, we recommend paying attention to the key features: 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.

### Where can I download the instructions for Network Cable BlueOptics SFA21BM20?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10889093/64082503_large.webp