# QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-MR-BO Fiber Optic

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-esr4-mr-bo--6185009
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-ESR4-MR-BO
**EAN:** 4063232074696
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.49 €
**Prices and availability valid until:** 2026-08-25 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-mr-bo--6185009

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics QSFP-40G-ESR4-MR-BO is a high-performance QSFP transceiver module designed for fiber optic networks. It features an MTP/MPO connector and is lightweight at 40g, making it ideal for efficient data transmission. This module supports high-speed connections, ensuring reliable performance in data centers and enterprise networks.

## Long description

The BlueOptics QSFP-40G-ESR4-MR-BO is a 40 Gigabit Ethernet QSFP transceiver module designed for multimode fiber systems. Featuring an MTP/MPO connector and a lightweight aluminium housing, this module supports 40GBASE-ESR4 links up to 300 m and provides simultaneous transmit and receive channels using 850 nm optics. The module is suitable for data center uplinks, aggregation links and other high-speed fiber runs where compact QSFP form-factor and MTP/MPO connectivity are required.
Advantages
This QSFP transceiver offers compatibility with hardware platforms that support 40GBASE-ESR4 optics, tested to MSA standards. The MTP/MPO connector enables parallel multimode connections and simplified cabling for high-density environments. With a small 40 g weight and aluminium color housing, the module is easy to install and integrates cleanly into switch and router ports. Support for digital diagnostics (DDM/DOM) allows remote monitoring of voltage, temperature, laser bias and optical power for easier maintenance and fault analysis.
Suitable for
Data center server-to-switch uplinks and spine/leaf aggregation
High-speed multimode fiber links within enterprise networks
Switches, routers and storage systems that accept 40G QSFP modules
Environments requiring MTP/MPO parallel optical connections
Key specifications
Interface type: 40 Gigabit Ethernet (QSFP)
Optical standard: 40GBASE-ESR4
Wavelength: 850 nm transmit and receive
Connector: MTP/MPO
Maximum transfer distance: up to 300 m over multimode fiber
Housing colour: aluminium
Weight: 0.04 kg
Digital diagnostics monitoring: supported (DDM/DOM)
How to use
Insert the BlueOptics QSFP-40G-ESR4-MR-BO into a compatible QSFP port following the host device manufacturer’s hot-swap and handling instructions. Use appropriate MTP/MPO multimode patch cords and verify fiber polarity and connector cleanliness before insertion. After installation, confirm the link status on the host device and, if available, enable DDM/DOM to monitor real-time parameters such as temperature and optical power. Ensure the host platform supports 40GBASE-ESR4 optics to guarantee interoperability.
Usage recommendations
For optimal performance, pair the transceiver with OM3/OM4 multimode fiber and MTP/MPO patch cords rated for 40G parallel links, keep connectors clean using approved cleaning tools, and verify compatibility with the target switch or router model. Use the DDM/DOM interface for proactive monitoring and troubleshooting.

## Specifications

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

### Technical details

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

### Packaging data

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

### Operational conditions

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

### Weight & dimensions

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

### Ports & interfaces

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

### Features

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

### Performance

| Feature | Value |
|---|---|
| Maximum transfer distance | 300 m |

### Network

| Feature | Value |
|---|---|
| Fiber ethernet cabling technology | 40GBASE |
| Ethernet interface type | 40 Gigabit Ethernet |

## FAQ

### How much does the QSFP Transceiver BlueOptics QSFP-40G-ESR4-MR-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 24.08.2026 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 transfer distance, 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/6185009/54616140_large.webp