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

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-esr4-ls-bo--6185012
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-ESR4-LS-BO
**EAN:** 4063232074726
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.49 €
**Prices and availability valid until:** 2026-08-24 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-ls-bo--6185012

## 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-LS-BO is a fiber optic transceiver module designed for high-speed data transfer. It supports a maximum data rate of 40 Mbit/s and operates at a wavelength of 850 nm. With a mean time between failures (MTBF) of 1,000,000 hours, this module ensures reliability and longevity. Weighing only 40 g, it is lightweight and easy to install. Ideal for data centers and networking applications requiring efficient data transmission.

## Long description

The BlueOptics QSFP-40G-ESR4-LS-BO is a QSFP transceiver module for 40 Gigabit Ethernet applications. It supports a maximum data transfer rate of 40 Mbit/s over multimode fiber using an 850 nm wavelength and an MPO/MTP fiber connector. The module is designed to fit QSFP MSA-compliant ports and is intended for use in switches, routers and other networking hardware that accept QSFP transceivers. With a compact form factor and a weight of approximately 40 g, the module is intended for easy installation in data center and enterprise networking environments.
Advantages
This transceiver provides a standardized QSFP interface and MPO/MTP connectivity for aggregated 40 Gigabit Ethernet links. It supports a stated maximum transfer distance of up to 300 m over suitable multimode fiber and includes a mean time between failures (MTBF) value of 1,000,000 hours that indicates design focus on long operational life. The module is compatible with common QSFP slots and is lightweight, making it simple to deploy and replace in rack-mounted network equipment.
Suitable for
Aggregation links between switches and routers in data centers
High-speed server uplinks and top-of-rack connectivity
Short‑reach multimode fiber connections up to 300 m
Hardware platforms that support QSFP MSA-compliant 40G transceivers
Key specifications
Maximum data transfer rate: 40 Mbit/s
Wavelength: 850 nm
Maximum transfer distance over multimode fiber: 300 m
Ethernet interface type: 40 Gigabit Ethernet
Fiber optic connector: MPO/MTP
Weight: 0.04 kg
Mean time between failures (MTBF): 1,000,000 hours
How to use
Install the QSFP transceiver into a compatible QSFP slot on supported network equipment following the equipment manufacturer's hot‑plug and electrostatic discharge (ESD) procedures. Connect an MPO/MTP multimode fiber patch cable to the module and route the cable to the corresponding transceiver or patch panel. Verify link status and speed through the host device management interface. If the host supports digital diagnostic monitoring (DDM/DOM), use the management tools to monitor optical parameters and verify proper operation.
Usage recommendations
Use OM3/OM4 multimode fiber for distances approaching the 300 m maximum to maintain signal quality. Ensure host hardware firmware supports third‑party QSFP transceivers if required by the platform. Observe ESD precautions during installation and avoid excessive bending or stress on MPO/MTP fiber connectors to preserve link performance.

## 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-LS-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 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/6185012/54616184_large.webp