# Optical Fiber Attenuator CBO SFA23BK1 Singlemode 1 dB

**URL:** https://aio.lv/en/product--blueoptics-sfa23bk1--4467319
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA23BK1
**EAN:** 4063232045214
**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-sfa23bk1--4467319

## 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

CBO SFA23BK1 is a singlemode inline optical fiber attenuator with a fixed attenuation of 1 dB. Designed for fiber-optic links, it reduces signal power to prevent receiver overload and optimise link performance. Compact and simple to install in patch panels or inline connectors, it is suitable for testing, maintenance and permanent network deployments.

## Long description

CBO SFA23BK1 Singlemode 1 dB is an inline optical fiber attenuator designed for singlemode fiber links where a precise 1 dB reduction of optical power is required. The attenuator is compact and intended for insertion in patch panels, fiber jumpers, or inline connectors to prevent receiver saturation and to balance power across network segments. It is compatible with standard singlemode connectors and provides a fixed, reliable attenuation level without the need for adjustment.
Advantages
The inline design offers space-efficient installation in racks and enclosures while maintaining consistent attenuation. As a fixed 1 dB attenuator, it eliminates the variability of adjustable units and reduces the risk of misconfiguration during installation or maintenance. The device is suited for both temporary testing and permanent deployment, and its simple construction minimizes insertion loss variability and return loss impact when used as specified.
Suitable for
Balancing optical power between transmitters and receivers in singlemode networks
Preventing receiver overload in fiber-optic links
Field testing, measurements and temporary insertion during maintenance
Integration into patch panels, fiber jumpers and inline connector runs
Key specifications
Fiber type: singlemode
Attenuation: fixed 1 dB
Form factor: inline attenuator suitable for patch panels and jumper insertion
Connector compatibility: typical singlemode connector interfaces
Application: suitable for testing, maintenance and permanent network deployments
How to use
Insert the attenuator inline between two compatible singlemode connectors, ensuring clean connector end faces before mating to maintain low loss and prevent contamination. Verify connector type compatibility and secure connections within patch panels or on fiber jumpers. For testing, use the attenuator to create a controlled 1 dB reduction and measure system response. When deployed permanently, mount or route the fiber carefully to avoid sharp bends and mechanical stress on the attenuator.
Usage recommendations
Clean connectors before installation and handle the attenuator with standard ESD precautions. Confirm that a fixed 1 dB attenuation meets system requirements—use additional or different values if greater attenuation is needed—and avoid exposing the device to excessive mechanical strain or harsh environmental conditions.

## FAQ

### How much does the Optical Attenuator CBO SFA23BK1 Singlemode 1 dB 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 — 18 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/4467319/59856748_large.webp