# Fiber optic transceiver module BlueOptics 655874-B21-BO 40000 Mbit/s QSFP

**URL:** https://aio.lv/en/product--blueoptics-655874-b21-bo--5510276
**Data updated:** 2026-01-13 21:29 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 655874-B21-BO
**EAN:** 4063232052861
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 110.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 91.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-655874-b21-bo--5510276

## 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 655874-B21-BO is a fiber optic transceiver module designed for high-speed data transfer up to 40000 Mbit/s. It features a QSFP interface and is made of durable stainless steel. This module is ideal for enhancing network performance and ensuring reliable connectivity in data centers and enterprise networks.

## Long description

The BlueOptics 655874-B21-BO fiber optic transceiver module provides high-speed data transfer up to 40000 Mbit/s using a QSFP interface. Constructed with a stainless steel housing, this transceiver is intended to deliver reliable connectivity and increased network throughput for data center and enterprise environments. The module supports standard QSFP-compatible ports and is suitable for integration into existing network hardware that accepts QSFP transceivers.
Advantages
This QSFP transceiver supports multi-gigabit throughput up to 40000 Mbit/s while maintaining a compact QSFP form factor. The stainless steel housing offers mechanical durability and electromagnetic stability for continuous operation in rack-mounted equipment. Its compatibility with QSFP interfaces simplifies deployment in switches, routers, and optical line cards, helping to maintain consistent link performance in high-density network setups.
Suitable for
 High-speed uplinks between switches and aggregation points
 Data center backbone connections and server interconnects
 Enterprise networks requiring high-bandwidth links
 Optical switch ports and QSFP-capable line cards
Key specifications
 Interface type: QSFP
 Maximum data transfer rate: 40000 Mbit/s
 Housing material and colour: stainless steel
 Form factor: QSFP-compatible transceiver module
How to use
Install the transceiver into a compatible QSFP port on your network device following the device manufacturer's hot-plug or insertion instructions. Ensure both ends of the fiber connection use appropriate optical cables and connectors matched to the transceiver's optical requirements. After insertion, verify link status and configure network settings on connected equipment as required. Follow standard handling practices for optical modules to avoid contamination and mechanical damage.
Usage recommendations
Operate the transceiver within the equipment's specified temperature and power ranges and use certified optical cables and connector cleaning procedures to maintain link quality. For high-density installations, plan port assignments and airflow to ensure proper cooling of QSFP modules. If link issues occur, check fiber polarity, connector cleanliness, and device compatibility with QSFP transceivers.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Maximum data transfer rate | 40000 Mbit/s |
| Digital Diagnostics Monitoring (DDM) | Yes |
| Single-mode fiber (SMF) supported | Yes |

### Network

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

### Packaging data

| Feature | Value |
|---|---|
| Number of products included | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Product colour | Stainless steel |

## FAQ

### How much does the Fiber optic transceiver BlueOptics 655874-B21-BO cost, and is it available for purchase?

The price is 110.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 39 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

### 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, 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/5510276/54615757_large.webp