# Transceiver CBO QSFP-40G-SR4 40Gbps fiber optic module

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-ee-bo--4466391
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-SR4-EE-BO
**EAN:** 4063232073873
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.49 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 77.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-ee-bo--4466391

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.89 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP-40G-SR4 is a 40Gbps fiber optic transceiver module designed for short-range multimode links. It fits QSFP form-factor ports and supports 40 Gigabit Ethernet connectivity over MMF using SR4 signaling. Intended for data center and switch-to-switch connections, it provides high-density 40G uplinks and straightforward hot-pluggable installation.

## Long description

The Transceiver CBO QSFP-40G-SR4 40Gbps fiber optic module is a hot-pluggable QSFP form-factor transceiver designed for short-range multimode fiber links. It supports 40 Gigabit Ethernet over MMF using SR4 signaling and provides a compact, high-density solution for data center and switch-to-switch connectivity. The module is intended for use in environments where reliable 40G uplinks and low-latency, high-throughput connections are required.
Advantages
This QSFP-40G-SR4 module delivers 40 Gbps aggregate bandwidth in a single QSFP package, enabling high-density port deployment in racks and switches. The hot-pluggable design simplifies installation and maintenance without powering down equipment. Optimized for short-reach multimode fiber, the module reduces cabling complexity in data center topologies and supports common SR4-compatible transceiver ecosystems.
Suitable for
 40 Gigabit Ethernet uplinks between switches and aggregation devices
 Short-range multimode fiber links in data center top-of-rack and spine-leaf architectures
 High-density blade servers and network appliances with QSFP ports
 Environments requiring hot-pluggable, low-latency 40G connectivity
Key specifications
 Form factor: QSFP (Quad Small Form-factor Pluggable)
 Data rate: 40 Gbps aggregate
 Fiber type: Multimode fiber (MMF)
 Signaling: SR4 (short-range, 4-lane)
 Typical reach: designed for short-range multimode links (data center distances)
 Interface: MPO/MTP parallel fiber connection compatible with SR4 cabling
 Installation: hot-pluggable into QSFP ports
How to use
Insert the QSFP-40G-SR4 transceiver into an available QSFP port on a compatible switch or network device while the device is powered on. Connect the multimode MPO/MTP cable between transceivers or between a transceiver and a breakout harness as required by your topology. Ensure that the fiber type (MMF) and trunking (SR4-compatible MPO/MTP cabling) match the module specifications. Monitor link status through the device management interface to confirm a stable 40G connection.
Usage recommendations
For reliable performance, use OM3 or OM4 multimode fiber and SR4-compatible MPO/MTP cabling, maintain proper fiber cleanliness and bend radius, and verify switch compatibility with QSFP SR4 modules. Use appropriate breakout cables or cassette assemblies for connectivity to duplex interfaces if needed.

## FAQ

### How much does the CBO QSFP-40G-SR4 40Gbps transceiver cost, and is it available for purchase?

The price is 93.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 445 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 05.08.2026 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

## Image

https://aio.lv/img/cache/product/4466391/59857349_large.webp