# FF SEP-03 USB Line Amplifier and Galvanic Isolator

**URL:** https://aio.lv/en/product--ff-sep-03-usb--12469867
**Data updated:** 2026-05-18 09:27 (EEST)
**Category:** I/O Adapters & Controllers
**Manufacturer:** FF
**Manufacturer code:** SEP-03 USB
**EAN:** 5908312598169
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 41.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-sep-03-usb--12469867

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The FF SEP-03 USB is a professional line amplifier and galvanic isolator designed to extend USB signal range and protect connected devices. It ensures stable data transmission and provides electrical isolation between the host and peripheral equipment. Ideal for industrial and office environments where signal integrity and equipment protection from voltage surges are required.

## Long description

The FF SEP-03 USB Line Amplifier and Galvanic Isolator is a professional-grade device engineered to enhance the reliability of USB connections in demanding environments. By acting as both a signal booster and an electrical barrier, it ensures that data transmission remains stable over longer distances while simultaneously protecting sensitive host computers and peripheral equipment from potential electrical damage caused by ground loops or voltage surges.
Advantages
This device offers significant benefits for users requiring robust connectivity. The integrated galvanic isolation effectively separates the electrical circuits of the connected devices, which prevents interference and protects hardware from high-voltage spikes. Furthermore, the line amplification feature compensates for signal degradation, allowing for consistent performance even when using longer cable runs that would otherwise suffer from data loss or connection instability.
Suitable for
Industrial automation systems requiring stable USB communication
Protecting sensitive laboratory equipment from electrical noise
Office environments with complex grounding setups
Extending USB connections between computers and peripheral hardware
When it may not be suitable
This device is not intended for high-speed data transfer applications that exceed the standard USB 2.0 specifications. It may also not be suitable for devices that require high-power delivery through the USB port, as the isolation process may limit the total current available to the peripheral.
Key specifications
Function: USB signal amplification and galvanic isolation
Interface: USB standard
Protection: Electrical surge and ground loop isolation
Application: Industrial and office data transmission
How to use
To use the FF SEP-03 USB, connect the device directly between your host computer and the peripheral device using standard USB cables. The unit is designed for plug-and-play operation, meaning it does not require additional software drivers to function. Ensure that the cables used are of high quality to maintain the integrity of the signal being amplified.
What to consider before purchase
Verify the power requirements of your peripheral device
Check if your application requires USB 2.0 or higher speed standards
Assess the length of the cable run needed for your specific setup
Usage recommendations
For optimal performance, keep the device away from high-interference sources such as large motors or power transformers and ensure all cable connections are secure to prevent intermittent signal loss.

## FAQ

### How much does the FF SEP-03 USB Line Amplifier and Galvanic Isolator 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 — 1 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 03.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 FF 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 FF 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/12469867/68772641_large.webp