# Fiber optic transceiver module BlueOptics QSF-503T-BO 40000 Mbit/s QSFP 850 nm

**URL:** https://aio.lv/en/product--blueoptics-qsf-503t-bo--10617610
**Data updated:** 2026-02-25 16:38 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSF-503T-BO
**EAN:** 4063232308708
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 309.99 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 256.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsf-503t-bo--10617610

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics QSF-503T-BO is a fiber optic transceiver module designed for high-speed data transfer at 40000 Mbit/s. It operates at a wavelength of 850 nm and features a QSFP interface. The module is made of durable metal housing and weighs 40 g, making it suitable for various networking applications.

## Long description

The BlueOptics QSF-503T-BO is a fiber optic transceiver module designed for high-speed data transmission at up to 40000 Mbit/s. It uses a QSFP interface and operates at an 850 nm wavelength. The module is housed in a durable metal casing, finished in silver, and weighs approximately 0.04 kg, making it suitable for compact installation in networking equipment that supports QSFP optics.
Advantages
This QSFP transceiver supports 40 Gbit/s links over multimode fiber with an 850 nm transmitter and receiver. Its metal housing provides mechanical durability and helps with heat dissipation in rack-mounted equipment. The compact QSFP form factor enables high port density and straightforward insertion into compatible transceiver slots. The module’s specifications focus on compatibility with standard QSFP interfaces and common multimode fibre deployments.
Suitable for
40 Gbit/s uplinks between switches and aggregation devices
High-speed connections in data center topologies using multimode fiber
Server or storage interconnects requiring QSFP transceivers
Network equipment upgrades where QSFP 850 nm optics are supported
Key specifications
Interface type: QSFP
Maximum data transfer rate: 40000 Mbit/s
Wavelength: 850 nm
Housing material and colour: metal, silver
Module weight: 0.04 kg
How to use
Insert the BlueOptics QSF-503T-BO into a compatible QSFP slot on your switch, router or network appliance following the host device manufacturer’s insertion and hot-swap guidelines. Connect the module to multimode fiber cabling terminated with the appropriate MPO/MTP or breakout patch cords as required by your network design. Ensure that the host device supports 40 Gbit/s operation and the 850 nm QSFP optics before enabling the link. Observe standard electrostatic discharge (ESD) precautions during handling and avoid touching the optical interfaces.
Usage recommendations
Use high-quality multimode fiber patch cords and proper MPO/MTP terminations to achieve the expected link performance. Verify that your hardware supports the QSFP optics and, if available, enable any digital diagnostic monitoring (DDM/DOM) features provided by your platform to monitor operating parameters such as temperature and optical power.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Maximum data transfer rate | 40000 Mbit/s |
| Wavelength | 850 nm |
| Fiber optic connector | QSFP |
| Rx wavelength (max) | 850 nm |
| Tx wavelength (max) | 850 nm |
| SFP transceiver standard | ESR4 |

### Network

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 95 |
| Storage temperature (T-T) | 0 - 70 |
| Operating temperature (T-T) | 0 - 70 |
| Maximum operating temperature | 70 °C |

### Power

| Feature | Value |
|---|---|
| Input voltage | 4 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 50 g |
| Number of products included | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.04 kg |

### Features

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

## FAQ

### How much does the Fiber optic transceiver BlueOptics QSF-503T-BO cost, and is it available for purchase?

The price is 309.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 333 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 06.08.2026 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.

## Image

https://aio.lv/img/cache/product/10617610/55369685_large.webp