# QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-EE-BO 40 Mbit/s 850 nm

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-esr4-ee-bo--6185022
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-ESR4-EE-BO
**EAN:** 4063232074832
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.49 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 98.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp-40g-esr4-ee-bo--6185022

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.08.2026 | free |
| Pickup points | 20.08.2026 | 1.79 EUR |
| Courier delivery to door | 20.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics QSFP-40G-ESR4-EE-BO is a fiber optic transceiver module designed for high-speed data transfer with a maximum rate of 40 Mbit/s. It operates at a wavelength of 850 nm and is suitable for various networking applications. With a mean time between failures (MTBF) of 1,000,000 hours, it ensures reliability and longevity. Weighing only 40 g, it is lightweight and easy to install.

## Long description

The BlueOptics QSFP-40G-ESR4-EE-BO is a QSFP fiber optic transceiver module designed for 40 Gigabit Ethernet links over multimode fiber. It supports a maximum data transfer rate of 40 Mbit/s at an operating wavelength of 850 nm and uses an MTP/MPO connector for parallel optical lanes. With a compact, lightweight design (approximately 40 g) and an MTBF of around 1,000,000 hours, this module is intended for use in switches, routers, storage systems and other equipment that accept MSA-compliant QSFP modules.
Advantages
The module follows MSA QSFP form-factor standards and provides interoperability with hardware platforms that support the corresponding QSFP-40G-ESR4 profile. It implements simultaneous transmit and receive functionality over multimode fiber via an MPO/MTP interface and includes digital diagnostics monitoring (DDM/DOM) for real-time monitoring of supply voltage, laser bias current, output power, received power and temperature. Built with components chosen for reliability, the transceiver is intended to deliver long operational life and reduced maintenance needs.
Suitable for
40 Gigabit Ethernet connections in data centers and aggregation layers
High-speed interconnects between switches, routers and storage arrays
Fibre Channel over Ethernet (FCoE) links and SDH/SONET transport
Short-reach multimode fiber links up to 300 m
Key specifications
Data rate: up to 40 Mbit/s
Wavelength: 850 nm (Tx/Rx)
Max transmission distance: up to 300 m over multimode fiber
Interface: QSFP (40 Gigabit Ethernet)
Connector type: MPO / MTP
Module weight: approx. 0.04 kg
Digital diagnostics: DDM/DOM (MSA SFF-8472 compliant)
Form factor: QSFP, MSA-compliant
How to use
Install the BlueOptics QSFP-40G-ESR4-EE-BO by inserting it into a compatible QSFP port on the target device following the equipment manufacturer’s hot-swap and handling instructions. Connect an appropriate MPO/MTP multimode fiber patch cord between transceivers or to a patch panel, ensuring correct polarity and proper fiber type (multimode). If your platform supports digital diagnostics monitoring, enable or query DDM/DOM through the host system to view real-time optical and electrical parameters. Observe electrostatic discharge (ESD) precautions and keep protective dust caps on the connector when not in use.
Usage recommendations
For best performance, use certified multimode fiber and MPO/MTP patch cords rated for 850 nm transmission, verify compatibility with the host hardware’s supported QSFP profiles, and confirm that DDM/DOM is supported if remote diagnostic monitoring is required. Maintain clean connectors and follow the device vendor’s installation guidance to achieve the specified reach and reliability.

## Specifications

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Ethernet LAN | Yes |
| Number of products included | 1 pc(s) |
| SFP transceiver type | Fiber optic |
| Multi-mode fiber (MMF) supported | Yes |

### Network

| Feature | Value |
|---|---|
| Ethernet interface type | 40 Gigabit Ethernet |
| Maximum data transfer rate | 40 Mbit/s |

### Ports & interfaces

| Feature | Value |
|---|---|
| Fiber optic connector | MTP/MPO |

### Performance

| Feature | Value |
|---|---|
| Maximum transfer distance | 300 m |
| Mean time between failures (MTBF) | 1000000 h |
| Wavelength | 850 nm |
| Rx wavelength (max) | 850 nm |
| Tx wavelength (max) | 850 nm |

### Weight & dimensions

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

### Operational conditions

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

### Packaging content

| Feature | Value |
|---|---|
| Manual | Yes |

### Packaging data

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

## FAQ

### How much does the QSFP Transceiver BlueOptics QSFP-40G-ESR4-EE-BO cost, and is it available for purchase?

The price is 119.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 86 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 17.08.2026 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: maximum data transfer rate, maximum transfer distance, weight, ethernet interface type, fiber optic connector, 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/6185022/54616338_large.webp