# Attenuator BlueOptics SFA21XK1 LC 1dB Silver

**URL:** https://aio.lv/en/product--blueoptics-sfa21xk1--11262560
**Data updated:** 2026-03-07 19:55 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA21XK1
**EAN:** 4063232230269
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 41.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfa21xk1--11262560

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFA21XK1 attenuator features a 1 dB attenuation level, ensuring optimal signal quality in your network. With LC connectors and a sleek silver design, it is perfect for various applications. This attenuator is designed to reduce signal strength without compromising performance, making it an essential component for maintaining network integrity.

## Long description

The BlueOptics SFA21XK1 LC 1dB Silver attenuator provides a fixed 1 dB reduction of optical signal power for multimode (50/125 µm) fiber links at 850 nm. Fitted with an LC/UPC simplex connector and a zirconia ceramic ferrule, this inline attenuator is intended to control excess optical power on short links and preserve receiver performance without altering transmission characteristics. The product is designed with a silver finish and a low insertion loss construction, and is factory-tested to document input loss and return loss values.
Advantages
The attenuator offers precise 1 dB attenuation while maintaining low input loss and high return loss, helping to avoid receiver saturation. High-quality components such as branded optical fiber and ceramic ferrules ensure consistent optical performance and mechanical reliability. Each unit is tested using interferometry and OTDR and supplied with a measurement protocol, and the component is constructed to meet industry safety and durability standards.
Suitable for
 Multimode fiber networks (50/125 µm) operating at 850 nm
 Short-distance links where transmitter output must be reduced to match receiver input
 Patch panels, transceiver connections and lab test setups requiring precise attenuation
Key specifications
 Attenuation level: 1 dB fixed
 Fiber type compatibility: Multimode 50/125 µm
 Wavelength indication: optimized for 850 nm
 Connector type: LC/UPC simplex
 Ferrule material: zirconia ceramic
 Operating temperature range: -40 °C to +75 °C
 Jacket: flame-retardant LSZH
 Tested for input loss and return loss; measurement protocol included
How to use
Install the BlueOptics SFA21XK1 in-line between the transmitting and receiving devices using the LC/UPC connectors. Ensure connectors and ports are clean before mating to avoid contamination-related loss. Insert the attenuator into the patch cord or patch panel port until fully seated; the unit is designed for standard LC housings and simplex connections. After installation, verify optical power levels and confirm the receiver operates within its specified input range.
Usage recommendations
For reliable results, clean connector end faces with an appropriate fiber cleaning tool before each connection, keep mating cycles within the specified lifetime of the connector, and confirm attenuation with a calibrated power meter. Use LSZH-rated cabling in environments where low smoke and halogen-free properties are required.

## Specifications

| Feature | Value |
|---|---|
| Connector(s) | LC |
| Product colour | Silver |
| Temperature range (T-T) | -40 - 75 |
| Attenuation | 1 dB |
| Sustainability compliance | Yes |
| Warranty period | 25 year(s) |
| Compliance certificates | RoHS |

## FAQ

### How much does the Attenuator BlueOptics SFA21XK1 cost, and is it available for purchase?

The price is 50.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 45 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 10.08.2026 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/11262560/64084145_large.webp