# Fiber optic transceiver module BlueOptics ET7402-LR4-BO 100000 Mbit/s QSFP28

**URL:** https://aio.lv/en/product--blueoptics-et7402-lr4-bo--4467053
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** ET7402-LR4-BO
**EAN:** 4063232014197
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 430.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 356.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-et7402-lr4-bo--4467053

## 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 ET7402-LR4-BO is a QSFP28 fiber optic transceiver module with a maximum data transfer rate of 100000 Mbit/s. It features a silver color, weighs 40 g, and has an MTBF of 1000000 hours. Compliant with RoHS standards, it is designed for high-speed data transmission in networking applications.

## Long description

The BlueOptics ET7402-LR4-BO is a QSFP28 fiber optic transceiver module designed for 100G (100000 Mbit/s) high-speed links over single‑mode fiber. It uses a QSFP28 interface with LC duplex connectivity and conforms to common MSA form‑factor standards. The module is intended for use in network equipment that supports 100GBASE‑LR4 optics and provides features for monitoring and reliable long‑distance optical transmission. The product colour is silver and the unit weight is approximately 40 g. The module is RoHS compliant and specified with an MTBF of 1,000,000 hours.
Advantages
The BlueOptics ET7402-LR4-BO offers multi‑wavelength CWDM transmit and receive channels to implement 100GBASE‑LR4 links up to typical single‑mode fiber distances defined by the LR4 standard. Its QSFP28 form factor supports compact, hot‑pluggable installation in compatible switches, routers and storage systems. The module includes digital diagnostics monitoring (DDM/DOM) functionality for real‑time readout of supply voltage, laser bias current, transmit power, receive power and temperature when the host hardware supports these features. Component selection and MSA compliance aim to provide extended operating life and consistent interoperability with major vendor platforms that accept LR4 QSFP28 optics.
Suitable for
100G Ethernet links in data center aggregation and spine/leaf architectures
Long‑reach single‑mode fiber connections up to LR4 standard distances
High‑speed interconnects between switches, routers and storage systems
Environments requiring remote optical link diagnostics and monitoring
Key specifications
Interface type: QSFP28 (hot‑pluggable)
Data rate: up to 100000 Mbit/s (100G)
Optical standard: 100GBASE‑LR4 (CWDM wavelengths, single‑mode fiber)
Connector: LC duplex
Digital diagnostics: DDM/DOM (MSA compliant)
Product colour: Silver
Weight: approx. 0.04 kg
Environmental/standards: RoHS compliant
Reliability: MTBF approx. 1,000,000 hours
How to use
Install the BlueOptics ET7402-LR4-BO into a compatible QSFP28 port while the host device is powered according to the equipment manufacturer’s hot‑swap procedures. Connect an appropriate LC duplex single‑mode patch cord between transceivers or to a patch panel, ensuring correct fiber polarity. Verify that the host platform supports 100GBASE‑LR4 optics and, if required, enable or verify DDM/DOM support to access diagnostic parameters. Follow the switch or router documentation to confirm link configuration, lane mapping and any firmware settings required for third‑party optics.
Usage recommendations
For best signal integrity and range, use single‑mode fiber and high‑quality LC duplex patch cords; avoid sharp bends and maintain proper connector cleanliness. Confirm compatibility and DDM/DOM support with the target hardware before deployment and consider testing a single module in your environment prior to full rollout.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP28 |
| Maximum data transfer rate | 100000 Mbit/s |
| Fiber optic connector | LC |
| Maximum transfer distance | 10000 m |
| Single-mode fiber (SMF) supported | Yes |

### Network

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

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Operational conditions

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

### Features

| Feature | Value |
|---|---|
| Mean time between failures (MTBF) | 1000000 h |
| Form factor | QSFP28 |
| Product colour | Silver |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 50 g |

### Packaging content

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

### Weight & dimensions

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

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

## FAQ

### How much does the Fiber optic transceiver BlueOptics ET7402-LR4-BO cost, and is it available for purchase?

The price is 430.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 457 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, 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/4467053/64294197_large.webp