# Fiber optic transceiver module BlueOptics 100G-ER4LT-QSFP40KM-BO 100 Mbit/s QSFP28

**URL:** https://aio.lv/en/product--blueoptics-100g-er4lt-qsfp40km-bo--10777564
**Data updated:** 2026-04-03 16:15 (EEST)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 100G-ER4LT-QSFP40KM-BO
**EAN:** 4063232239002
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 330.49 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 1 099.58 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-100g-er4lt-qsfp40km-bo--10777564

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics 100G-ER4LT-QSFP40KM-BO is a fiber optic transceiver module with a QSFP28 interface, supporting a maximum data rate of 100 Mbit/s. It has a compact design weighing only 40 g and a high reliability with an MTBF of 1,000,000 hours, making it suitable for various network applications.

## Long description

The BlueOptics 100G-ER4LT-QSFP40KM-BO is a QSFP28 fiber optic transceiver module designed for long-reach single-mode links. Supporting a maximum data rate of 100 Mbit/s and fitted with an LC-Duplex connector, it implements the 100GBASE-ER4L transmission profile and is intended for deployment in switches, routers and other network devices that accept QSFP28 MSA form-factor modules. The module is compact and lightweight (approx. 0.04 kg) and includes Digital Diagnostics Monitoring (DDM/DOM) functionality for real-time status of key optical and electrical parameters.
Advantages
The transceiver follows MSA QSFP28 standards to ensure mechanical and electrical interoperability with compatible hardware and supports single-mode fiber links up to 30 km using CWDM-based transmitter and receiver channels. It provides digital diagnostic functions for monitoring supply voltage, laser bias current, transmit output power, receive input power and temperature. Built from industry-grade components, the module is designed for long service life and high availability with a manufacturer-stated MTBF of 1,000,000 hours.
Suitable for
Long-reach 100G optical links over single-mode fiber (up to 30 km)
Data center interconnects and campus backbone connections
High-speed Ethernet and Fibre Channel over Ethernet applications
Replacement or compatibility use in hardware platforms supporting QSFP28 100GBASE-ER4L modules
Key specifications
Interface type: QSFP28
Standard: 100GBASE-ER4L
Maximum data transfer rate: 100 Mbit/s
Connector: LC-Duplex
Fiber type: Single-mode fiber (SMF)
Wavelength: CWDM channels around 1310 nm
Typical reach: up to 30 km
Diagnostics: Digital Diagnostics Monitoring (DDM/DOM) compliant with SFF-8472
Weight: 0.04 kg
Operating temperature range: 0°C to +70°C (device-class dependent)
MTBF: approx. 1,000,000 hours
How to use
Install the QSFP28 transceiver into a compatible QSFP28 port on a switch, router or other network device while the host device is powered according to the vendor instructions. Terminate single-mode fiber with LC-Duplex connectors and mate the cable to the transceiver. Verify that the host platform supports 100GBASE-ER4L modules and, if required, enable or verify DDM/DOM support in the device management interface to monitor module parameters. Perform link and interface checks after insertion to confirm optical power levels and link status.
Usage recommendations
Ensure the host hardware and firmware explicitly support the QSFP28 100GBASE-ER4L profile and DDM/DOM features; use factory-quality single-mode patch cords and observe proper fiber handling and ESD precautions during installation. For predictable long-reach performance, test the link budget and optical power levels across the intended 30 km distance before deployment.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP28 |
| Maximum data transfer rate | 100 Mbit/s |
| Ethernet interface type | 100 Gigabit Ethernet |
| Fiber ethernet cabling technology | 40GBASE |
| Ethernet LAN | Yes |
| Fiber optic connector | LC |
| Maximum transfer distance | 30000 m |
| Single-mode fiber (SMF) supported | Yes |
| SFP transceiver standard | CWDM |

### Network

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

### Features

| Feature | Value |
|---|---|
| Mean time between failures (MTBF) | 1000000 h |

### Weight & dimensions

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

### Packaging data

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

## FAQ

### How much does the Fiber optic transceiver module BlueOptics 100G-ER4LT-QSFP40KM-BO cost, and is it available for purchase?

The price is 1,330.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 10.08.2026 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, Leasing for legal entities. 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, 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.

### Where can I download the instructions for Fiber optic transceiver module BlueOptics 100G-ER4LT-QSFP40KM-BO?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10777564/60058348_large.webp