# QSFP Transceiver BlueOptics QSFP-40G-CSR4-BO 40000 Mbit/s 850 nm

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-csr4-bo--6185036
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-CSR4-BO
**EAN:** 4063232028552
**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-csr4-bo--6185036

## 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-CSR4-BO is a fiber optic transceiver module designed for high-speed data transfer at 40000 Mbit/s over a distance of up to 400 m. It operates at a wavelength of 850 nm and is compatible with Cisco equipment. This stainless steel module is ideal for data centers and enterprise networks requiring reliable and efficient connectivity.

## Long description

The BlueOptics QSFP-40G-CSR4-BO is a QSFP form-factor fiber optic transceiver module designed for 40 Gbit/s links. It supports a maximum data transfer rate of 40000 Mbit/s over multimode fiber at an 850 nm wavelength and is specified for reach up to 400 m. Built with a stainless steel housing and compatibility with Cisco equipment, this module is intended for deployment in data centers and enterprise networks that require compact, hot-pluggable, high-density optical connectivity.
Advantages
The module's QSFP interface provides four-channel aggregation in a single compact transceiver, enabling space-efficient 40 Gbit/s connections. Stainless steel construction offers robust mechanical durability and effective shielding. Native operation at 850 nm on multimode fiber enables cost-effective short-reach links up to 400 m, while compatibility with common networking equipment simplifies integration into existing infrastructures.
Suitable for
 40 Gbit/s uplinks in data center racks
 Switch-to-switch or switch-to-server connections over multimode fiber
 High-density aggregation panels and optical patching
 Enterprise backbone segments requiring short-reach, high-throughput links
Key specifications
 Form factor: QSFP (Quad Small Form-factor Pluggable)
 Maximum data transfer rate: 40000 Mbit/s
 Operating wavelength: 850 nm
 Maximum reach on multimode fiber: up to 400 m
 Housing material / colour: stainless steel
 Compatibility: compatible with Cisco equipment and other QSFP-capable devices
How to use
Insert the BlueOptics QSFP-40G-CSR4-BO into a compatible QSFP port while the host device is powered according to the vendor's hot-plug guidelines. Connect the multimode fiber patch cords to the transceiver's optical interface, ensuring correct polarity and clean connectors. After physical installation, verify the link status in the switch or transceiver diagnostics and configure the host ports and VLANs as required. Follow equipment vendor guidance for any required firmware or compatibility settings.
Usage recommendations
Use OM3/OM4 multimode fiber for reliable performance at the specified 400 m reach, keep connector endfaces clean using proper cleaning tools, and store spare transceivers in anti-static packaging. When integrating with third-party equipment, verify interoperability notes from the switch vendor to ensure full feature and link stability.

## Specifications

### Packaging data

| Feature | Value |
|---|---|
| Number of products included | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Brand compatibility | Cisco |
| Product colour | Stainless steel |

### Performance

| Feature | Value |
|---|---|
| Digital Diagnostics Monitoring (DDM) | Yes |
| Fiber ethernet cabling technology | 40GBASE |
| Wavelength | 850 nm |
| Maximum transfer distance | 300 m |
| Fiber optic connector | MPO |
| Multi-mode fiber (MMF) supported | Yes |
| Interface type | QSFP |
| Maximum data transfer rate | 40000 Mbit/s |
| SFP transceiver type | Fiber optic |

## FAQ

### How much does the QSFP Transceiver BlueOptics QSFP-40G-CSR4-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: interface type, maximum data transfer rate, sfp transceiver type, 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/6185036/54616588_large.webp