# BlueOptics Q28-100G-ESR4-BO network transceiver module Fiber optic 40000 Mbit/s QSFP

**URL:** https://aio.lv/en/product--blueoptics-q28-100g-esr4-bo--6188580
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-100G-ESR4-BO
**EAN:** 4063232273563
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 128.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 106.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-q28-100g-esr4-bo--6188580

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics Q28-100G-ESR4-BO is a QSFP fiber optic transceiver module with a maximum data transfer rate of 40000 Mbit/s. It weighs 40 g and is designed for high-speed data transmission in networking applications.

## Long description

The BlueOptics Q28-100G-ESR4-BO is a QSFP fiber optic transceiver module designed for high-speed multimode optical links with a maximum data transfer rate of 40000 Mbit/s. Housed in a compact silver QSFP form factor and weighing approximately 0.04 kg, the module implements 100GBASE-ESR4 signaling with MPO/MTP connectivity and supports simultaneous transmit and receive operation on 850 nm optical channels. It follows MSA-compliant QSFP/QSFP28 mechanical and electrical interfaces for use in compatible network hardware.
Advantages
The transceiver provides a standardized QSFP interface that enables straightforward integration into switches, routers and storage systems that accept QSFP/QSFP28 modules. Built and tested to meet MSA specifications, the module uses industry-grade optical and electronic components to ensure compatibility, predictable behavior and extended service life. Integrated digital diagnostics (DDM/DOM, SFF-8472 compliant) supports real-time monitoring of parameters such as supply voltage, optical power and temperature to simplify troubleshooting and maintenance.
Suitable for
 High-speed 100 Gbps multimode fiber links in data centers
 Inter-switch links and aggregation ports in campus and enterprise networks
 Connections between switches, routers, storage systems and other network appliances
 Short-reach optical uplinks using MPO/MTP trunk or fanout cable assemblies
Key specifications
 Interface type: QSFP (QSFP/QSFP28 form factor)
 Data rate: up to 40000 Mbit/s (100GBASE-ESR4 mode)
 Optical wavelength: 850 nm transmit and receive on multimode fibers
 Connector type: MPO/MTP multimode
 Product colour: Silver
 Weight: approx. 0.04 kg
 Digital diagnostics: DDM/DOM support (SFF-8472 compliant)
How to use
Install the BlueOptics Q28-100G-ESR4-BO by inserting the QSFP module into a compatible QSFP/QSFP28 cage on a switch, router or other network device following the vendor's hot-swap procedure. Connect an MPO/MTP multimode patch or trunk cable to the module's MPO/MTP receptacle, ensuring correct fiber polarity and that the cable and patch panels are rated for 100GBASE-ESR4 multimode operation. Configure the host device port as required for 100G operation and verify link status. If available and supported by the host, use the DDM/DOM interface to read real-time module parameters for diagnostics and monitoring.
Usage recommendations
Use high-quality multimode MPO/MTP fiber assemblies and ensure proper cable management to maintain signal integrity. Verify host device compatibility with 100GBASE-ESR4 MPO/MTP QSFP modules and enable DDM/DOM support on the host to leverage remote diagnostics. Follow manufacturer guidelines for insertion/removal and observe electrostatic discharge (ESD) precautions when handling the transceiver.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Maximum data transfer rate | 40000 Mbit/s |
| Fiber ethernet cabling technology | 40GBASE |
| Fiber optic connector | MTP/MPO |
| Maximum transfer distance | 300 m |
| Rx wavelength (max) | 850 nm |
| Rx wavelength (min) | 850 nm |
| Tx wavelength (min) | 850 nm |
| Tx wavelength (max) | 850 nm |
| Multi-mode fiber (MMF) supported | Yes |

### Network

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |
| Maximum operating temperature | 70 °C |

### Features

| Feature | Value |
|---|---|
| Form factor | QSFP |
| Product colour | Silver |

### Packaging data

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

### Weight & dimensions

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

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | Federal Communications Commission (FCC), RoHS, CE |

## FAQ

### How much does the BlueOptics Q28-100G-ESR4-BO network transceiver module cost, and is it available for purchase?

The price is 128.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 169 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 03.08.2026 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/6188580/61180182_large.webp