# Attenuator BlueOptics SFA21XK10 LC 10dB Black

**URL:** https://aio.lv/en/product--blueoptics-sfa21xk10--11262559
**Data updated:** 2026-03-07 19:55 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA21XK10
**EAN:** 4063232230351
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 53.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 44.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfa21xk10--11262559

## 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

The BlueOptics SFA21XK10 attenuator features a 10 dB attenuation level, making it ideal for managing signal strength in fiber optic networks. With LC connectors, it ensures compatibility with various devices. The sleek black design adds a professional touch to your setup. This attenuator is perfect for optimizing performance in high-speed data transmission environments.

## Long description

The BlueOptics SFA21XK10 LC 10dB Black attenuator is a fixed optical attenuator designed to reduce signal power in multimode fiber links. Intended for 50/125 µm fibers at 850 nm, it uses an LC/UPC simplex connector with a zirconia ceramic ferrule and provides a defined 10 dB attenuation to protect receivers from excessive optical power and to balance power levels across links. The compact black housing and LSZH jacket suit installations in data centers, telecom racks and structured cabling where controlled attenuation and low smoke/harmful gas emissions are required.
Advantages
The attenuator delivers a stable 10 dB attenuation with low additional insertion loss and high return loss. Constructed with branded fiber and precision connectors, it is tested using interferometer and OTDR methods and supplied with a measurement protocol for input loss and return loss. The zirconia ferrule and quality connector components support long mating cycle life, while the LSZH jacket provides reduced smoke and no halogen release in fire conditions. The unit is specified to operate across a wide temperature range suitable for industrial and commercial environments.
Suitable for
Multimode fiber links (50/125 µm) at 850 nm
Data center and telecom rack installations
Short-distance links where transmitter power must be reduced
Environments requiring low-smoke, halogen-free cabling
Key specifications
Attenuation: 10 dB fixed
Connector type: LC/UPC simplex
Fiber type compatibility: multimode 50/125 µm (optimized at 850 nm)
Ferrule material: zirconia ceramic
Jacket: LSZH (low smoke, zero halogen)
Operating temperature range: -40°C to +75°C
High return loss and low input loss; factory-tested with interferometer and OTDR
Designed for extended mating cycles (up to specified manufacturer lifetime)
How to use
Insert the LC/UPC simplex connector of the attenuator between the transmitter and the receiver or patch panel port requiring reduced optical power. Ensure connectors and ports are clean before mating to prevent contamination-related loss. The attenuator provides a fixed 10 dB reduction immediately upon insertion; no configuration is required. After installation, verify optical power levels with a power meter or OTDR to confirm that receiver input remains within safe operating range.
Usage recommendations
Use this attenuator in-line on multimode LC connections where measured optical power exceeds receiver specifications. Store and handle connectors with protective caps until installation, periodically inspect mating surfaces for contamination, and replace the attenuator if physical damage or abnormal loss is detected. For systems requiring different attenuation values or APC polish, select the appropriate variant to match link requirements.

## Specifications

| Feature | Value |
|---|---|
| Connector(s) | LC |
| Product colour | Black |
| Temperature range (T-T) | -40 - 75 |
| Attenuation | 10 dB |
| Sustainability compliance | Yes |
| Warranty period | 25 year(s) |
| Compliance certificates | RoHS |

## FAQ

### How much does the Attenuator BlueOptics SFA21XK10 cost, and is it available for purchase?

The price is 53.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 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/11262559/64084144_large.webp