# Optical attenuator CBO SFA21BK14 Singlemode LC Simplex 14 dB

**URL:** https://aio.lv/en/product--blueoptics-sfa21bk14--4467300
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA21BK14
**EAN:** 4063232044521
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfa21bk14--4467300

## 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 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Passive optical attenuator CBO SFA21BK14 for singlemode fiber with LC simplex connector and fixed attenuation of 14 dB. Designed to reduce signal power in fiber-optic links to prevent receiver saturation, improve link margin, and test networks. Compact inline adapter for telecom, datacenter and testing applications, compatible with standard LC singlemode equipment.

## Long description

Passive optical attenuator BlueOptics SFA21BK14 is a compact inline device for singlemode fiber links with LC simplex connector and fixed attenuation of 14 dB. It reduces optical power delivered to receivers to prevent saturation, stabilise performance and support accurate testing of fiber-optic networks. The attenuator is suitable for installation in telecom, datacenter and laboratory environments where controlled signal reduction is required without active electronics.
Advantages
The attenuator offers a fixed 14 dB attenuation value in a small LC simplex form factor, making it easy to insert into existing singlemode links. Its passive design requires no power and contributes minimal additional insertion loss beyond the specified attenuation. The compact inline housing provides compatibility with standard LC connectors and helps maintain signal integrity and return loss characteristics expected in professional fiber installations.
Suitable for
Preventing receiver overload in singlemode optical links
Testing and commissioning fiber networks with reduced power levels
Matching transmitter power to receiver sensitivity in telecom and datacenter equipment
Laboratory and field measurements where precise fixed attenuation is required
Key specifications
Attenuation: fixed 14 dB
Fiber type: singlemode
Connector type: LC simplex
Design: inline, passive
Application areas: telecommunications, datacenter, testing
How to use
Insert the LC simplex connector of the attenuator between the transmitting and receiving ends of the singlemode fiber link, ensuring clean, dust-free connector endfaces before mating. No power or configuration is required; the device imposes a fixed 14 dB reduction in optical power. For patch panels or adapters, use the inline attenuator in accessible segments of the link to allow removal or replacement during troubleshooting and measurements.
Usage recommendations
Clean connectors with appropriate fiber cleaning tools before every connection to avoid increased loss and potential damage. Verify link power levels with an optical power meter after installing the attenuator to confirm the expected reduction. Store the attenuator with protective caps when not in use to protect connector endfaces.

## FAQ

### How much does the CBO SFA21BK14 Optical Attenuator 14 dB LC Singlemode cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 93 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

## Image

https://aio.lv/img/cache/product/4467300/59856744_large.webp