# SFP transceiver module BlueOptics SFP-GLS-W3520-A-BO 1250 Mbit/s

**URL:** https://aio.lv/en/product--blueoptics-sfp-gls-w3520-a-bo--5039988
**Data updated:** 2026-02-25 16:37 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP-GLS-W3520-A-BO
**EAN:** 4063232249308
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.99 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 35.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp-gls-w3520-a-bo--5039988

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP-GLS-W3520-A-BO is a fiber optic SFP transceiver module with a maximum data transfer rate of 1250 Mbit/s. It features a metal housing, operates at 3.3 V, and weighs only 3 g. Ideal for high-speed data communication in networking applications.

## Long description

The BlueOptics SFP-GLS-W3520-A-BO is a fiber optic SFP transceiver module designed for 1250 Mbit/s single-mode optical links. Housed in metal and operating at 3.3 V, this compact SFP module weighs approximately 3 g and uses an SFP interface with an LC simplex optical connector. It supports 1000BASE-BX-U type point-to-point transmission over single-mode fiber, combining a 1490 nm transmitter and a 1310 nm receiver to enable bidirectional data transfer on a single fiber up to long distances as defined by the 1000BASE-BX-U application.
Advantages
The module’s metal housing provides mechanical robustness and electromagnetic shielding while the small form factor complies with SFP MSA dimensions for broad hardware compatibility. Operating at a standard 3.3 V supply and weighing only 3 g, the transceiver is easy to install and suitable for dense port environments. The device supports digital diagnostics (DDM/DOM) when the host system exposes the feature, enabling remote monitoring of key optical and electrical parameters to simplify maintenance and troubleshooting.
Suitable for
Point-to-point Gigabit Ethernet links over single-mode fiber
Interconnects between switches, routers and media converters that support SFP 1000BASE-BX-U
Fiber connections in storage and telecommunication equipment requiring LC simplex connectors
Key specifications
Interface type: SFP (Small Form-factor Pluggable)
Data rate: up to 1250 Mbit/s (1.25 Gbit/s)
Optical application: 1000BASE-BX-U (bidirectional over single fiber)
Transmitter wavelength: 1490 nm (TX)
Receiver wavelength: 1310 nm (RX)
Connector: LC simplex
Supply voltage: 3.3 V
Housing: metal
Weight: approx. 0.003 kg
How to use
Insert the BlueOptics SFP-GLS-W3520-A-BO module into a compatible SFP slot on your switch, router or media converter while the host device is powered according to the manufacturer's guidance. Connect an LC simplex single-mode patch cord to the module’s optical port and route the fiber to the remote transceiver. Ensure the host device supports 1000BASE-BX-U and, if required, enable or verify Digital Diagnostics (DDM/DOM) support in the system to monitor supply voltage, laser bias current, transmit power, receive power and temperature. After insertion, verify link status and data throughput on the host device port.
Usage recommendations
Use single-mode LC simplex patch cords and follow the host hardware vendor’s compatibility list to ensure full functionality. Avoid touching the optical connector endfaces, keep dust caps on when not in use, and perform cleaning with appropriate fiber-optic cleaning tools to maintain signal quality. Confirm that the receiving and transmitting wavelength directions match the remote transceiver’s specification before deployment.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Fiber ethernet cabling technology | 1000BASE |
| Duplex system | Full |
| Fiber optic connector | SFP |
| Maximum transfer distance | 20000 m |
| Rx wavelength (max) | 1490 nm |
| Tx wavelength (max) | 1310 nm |
| SFP transceiver standard | BX-U |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |
| Maximum operating temperature | 70 °C |
| Minimum operating temperature | 0 °C |

### Power

| Feature | Value |
|---|---|
| Input voltage | 3.3 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 2 g |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.003 kg |

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |
| Housing material | Metal |

## FAQ

### How much does the SFP transceiver BlueOptics SFP-GLS-W3520-A-BO cost, and is it available for purchase?

The price is 42.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 295 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 10.08.2026 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

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

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, weight, 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 SFP transceiver BlueOptics SFP-GLS-W3520-A-BO?

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/5039988/64343719_large.webp