# USB to Fiber Optic Converter StarTech.com US100A20FXSC — USB 2.0 to 100Base-FX SC Duplex Multimode (2 km), 100 Mbps

**URL:** https://aio.lv/en/product--startech-us100a20fxsc--707761
**Data updated:** 2026-03-11 11:41 (EET)
**Category:** Network Cards
**Manufacturer:** StarTech
**Manufacturer code:** US100A20FXSC
**EAN:** 0065030874663
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 209.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 173.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-us100a20fxsc--707761

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

Compact StarTech.com USB to fiber optic converter (model US100A20FXSC) converts a USB 2.0 host port to a 100Base-FX SC female duplex fiber interface for multimode fiber (MMF) links up to 2 km. Wired connectivity with fiber interface supports IEEE 802.3x and 802.1Q standards. Suitable for adding fiber LAN access via USB on desktops, kiosks, or industrial PCs.

## Long description

The StarTech.com US100A20FXSC USB to Fiber Optic Converter converts a USB 2.0 Type-A host port into a 100Base-FX SC duplex multimode fiber interface, enabling a fibre connection up to 2 km. Compact and USB-powered, this adapter provides a wired fiber interface that supports IEEE 802.3x flow control and IEEE 802.1Q VLAN tagging. The converter is suitable for integrating fiber LAN access via USB on desktops, kiosks, laptops, tablets and industrial PCs where a secure optical link is required.
Advantages
This USB to fiber-optic converter offers a secure fiber-to-the-desk connection that reduces susceptibility to electromagnetic interference common with copper Ethernet. The unit is powered directly from the USB port for convenient portability and simple deployment. With an SC duplex optical transceiver for 100Base-FX multimode fiber, it supports data transmission over distances up to 2 km. Drivers are available for common desktop platforms to allow straightforward setup and operation.
Suitable for
Adding fiber LAN access to laptops or desktops that only have USB-A ports
Providing a fiber connection for kiosks, point-of-sale systems or industrial PCs
Environments requiring immunity to electromagnetic interference or enhanced physical network security
Temporary or mobile deployments where a portable fiber interface is needed
Key specifications
Interface: Fiber (SC duplex optical transceiver for 100Base-FX)
Host connection: USB 2.0 Type-A (bus powered)
Supported link type: Multimode fiber (MMF)
Maximum link distance: Up to 2 km over multimode fiber
Data rate: 100 Mbps Ethernet (100Base-FX)
Networking standards: IEEE 802.3x (flow control), IEEE 802.1Q (VLAN tagging)
Color: Black
Weight: 0.108 kg
How to use
Connect the converter to an available USB-A port on your computer or device. Install the appropriate drivers for your operating system when prompted or download certified drivers from the manufacturer. Plug an SC duplex multimode fiber cable into the converter's fiber port and connect the other end to the network transceiver or patch panel. The adapter derives power from the USB port and will present the 100 Mbps fiber interface once drivers are installed and the fiber link is active.
Usage recommendations
For reliable operation, use multimode fiber cabling rated for 100Base-FX and ensure connectors are clean before mating. Place the adapter where the USB port provides stable power; if using on a device with limited USB power, use a powered USB hub. Consult platform driver availability to confirm compatibility with your operating system before deployment.

## Specifications

| Feature | Value |
|---|---|
| Master (outer) case height | 355 mm |
| Master (outer) case width | 310 mm |
| Master (outer) case length | 590 mm |
| Products per master (outer) case | 80 pc(s) |
| Harmonized System (HS) code | 85176990 |
| Sustainability compliance | Yes |
| Sustainability certificates | RoHS, CE |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Interface | Fiber |
| Host interface | USB |
| Internal | No |
| Fiber ports quantity | 1 |
| Fiber optic connector | SC |
| USB version | 2.0 |

### Bandwidth

| Feature | Value |
|---|---|
| Maximum data transfer rate | 1000 Mbit/s |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.3x, IEEE 802.1Q |
| Chipset | ASIX Electronics - AX88772C |
| Maximum operating distance | 2000 m |
| Fiber ethernet cabling technology | 100BASE-FX |
| VLAN tagging | Yes |

### Performance

| Feature | Value |
|---|---|
| Plug and Play | Yes |
| Cable length | 0.195 m |
| Wake-on-LAN ready | Yes |
| Windows operating systems supported | Windows 8.1 Pro, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 7 Ultimate, Windows 8.1 Pro x64, Windows 8.1 x64, Windows 7 Home Premium x64, Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 11, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 10 x64, Windows 7 Professional |
| Mac operating systems supported | Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.9 Mavericks |
| Linux operating systems supported | Y |
| Server operating systems supported | Windows Server 2008, Windows Server 2012, Windows Server 2016 |

### Design

| Feature | Value |
|---|---|
| LED indicators | Power, Link, Activity |
| Housing material | Plastic |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.108 kg |
| Package weight | 52 g |
| Height | 20 mm |
| Width | 140 mm |
| Depth | 170 mm |
| Package depth | 270 mm |
| Package height | 30 mm |
| Package width | 52 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 90 |
| Storage temperature (T-T) | -10 - 70 |
| Operating temperature (T-T) | 0 - 60 |

### Packaging content

| Feature | Value |
|---|---|
| Quick start guide | Yes |

## FAQ

### How much does the USB to Fiber Converter StarTech.com US100A20FXSC cost, and is it available for purchase?

The price is 209.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 26.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can USB to Fiber Converter StarTech.com US100A20FXSC be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 StarTech 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 StarTech 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, interface, host interface, maximum data transfer rate, weight, networking standards, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for USB to Fiber Converter StarTech.com US100A20FXSC?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/707761/54729821_large.webp