# Fiber optic transceiver module BlueOptics 845970-B21-BO QSFP28 100G

**URL:** https://aio.lv/en/product--blueoptics-845970-b21-bo--10750405
**Data updated:** 2026-03-07 18:01 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 845970-B21-BO
**EAN:** 4063232295015
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 136.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 113.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-845970-b21-bo--10750405

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics 845970-B21-BO is a fiber optic QSFP28 transceiver module designed for 100 Gigabit Ethernet applications. It features an aluminum body, weighs 110g, and is suitable for high-speed data transmission. Ideal for networking environments requiring reliable and efficient connectivity.

## Long description

The BlueOptics 845970-B21-BO QSFP28 100G fiber optic transceiver module is designed for 100 Gigabit Ethernet environments that require a compact, MSA-compliant QSFP28 interface. Constructed with an aluminium body and weighing approximately 0.11 kg, this module supports high-speed optical links and conversion between 100GBASE and 25GBASE signals when used as a QSFP28-to-SFP28 converter. The module is intended for integration into network switches, routers, storage systems and other hardware platforms that support QSFP28 optics and offers simultaneous transmit and receive optical channels for multimode and single-mode fibers.
Advantages
The module follows MSA QSFP28 mechanical and electrical specifications, enabling broad compatibility with equipment that accepts standard QSFP28 transceivers. Its aluminium housing provides a durable, thermally conductive enclosure while keeping weight low. The transceiver supports digital diagnostics monitoring (DDM/DOM) to report key operational parameters such as supply voltage, laser bias current, optical output and input power levels, and temperature for remote error analysis and maintenance. Designed for high data-rate applications, it is suitable for Ethernet and Fibre Channel over Ethernet links up to 100 Gbit/s when supported by the host hardware.
Suitable for
100 Gigabit Ethernet uplinks and backbone connections
QSFP28-to-SFP28 conversion scenarios where supported
Data center switches, routers and storage system interconnects
High-speed links over multimode and single-mode fiber
Key specifications
Interface type: QSFP28
Form factor: QSFP28 multi-rate optical transceiver
Rated data rate: up to 100 Gbit/s (dependent on host support)
Housing: aluminium enclosure
Weight: approx. 0.11 kg
Optical support: multimode and single-mode fiber (protocol and reach depend on fiber type and module variant)
Diagnostics: Digital Diagnostics Monitoring (DDM/DOM) compliant with MSA SFF-8472
How to use
Install the BlueOptics QSFP28 module into a compatible QSFP28 slot on the host device while the device is powered off or per the host vendor’s hot-plug guidelines. If using the module as a QSFP28-to-SFP28 converter, ensure the host platform supports converter operation and the corresponding firmware. Connect appropriate single-mode or multimode fiber patch cords to the transceiver’s optical interface and secure connections at patch panels or directly to peer transceivers. Verify link status through the host device management interface and, if available, read DDM/DOM parameters to confirm optical power levels and operating temperature.
Usage recommendations
To achieve optimal performance, use quality fiber patch cords and maintain clean connector endfaces. Confirm host hardware compatibility and firmware support for QSFP28 and QSFP28-to-SFP28 conversion functions before deployment. Monitor DDM/DOM readings regularly to detect degradations in optical power or temperature shifts and follow standard ESD precautions when handling the transceiver.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP28 |
| Ethernet interface type | 100 Gigabit Ethernet |
| Ethernet LAN | Yes |

### Network

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.11 kg |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 120 g |
| Number of products included | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Product colour | Aluminium |

## FAQ

### How much does the Fiber optic transceiver BlueOptics 845970-B21-BO cost, and is it available for purchase?

The price is 136.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 141 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 27.07.2026 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, 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/10750405/59936165_large.webp