# Fiber optic transceiver CBO QSFP-40G-SR4 40G multimode QSFP+

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-ma-bo--4466396
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-SR4-MA-BO
**EAN:** 4063232073835
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 92.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 76.85 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-ma-bo--4466396

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 11.08.2026 | free |
| Pickup points | 14.08.2026 | 1.89 EUR |
| Courier delivery to door | 14.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP-40G-SR4 is a 40G fiber optic transceiver module in QSFP form factor designed for multimode fiber links. It provides 40 Gbps aggregated bandwidth for short-range Ethernet and data center connections. Suitable for high-density switch-to-switch, server uplinks and SAN interconnects, it enables compact, hot-pluggable optical connectivity.

## Long description

The BlueOptics CBO QSFP-40G-SR4 is a 40G multimode fiber optic transceiver in a QSFP+ form factor designed for short-range Ethernet and data center interconnects. The module provides aggregated 40 Gbps bandwidth across four parallel lanes and supports hot-pluggable installation into compatible QSFP slots. It is intended for use in high-density network environments where compact, energy-efficient short-reach optical links are required.
Advantages
The transceiver supports aggregated 40 Gbps throughput while occupying a single QSFP+ port, enabling high-density deployment in switches and servers. Its multimode optics and short-reach design reduce cabling complexity and lower power consumption compared with multiple discrete SFP+ links. Hot-pluggable capability allows replacement or upgrades without powering down equipment. The module is compatible with standard MPO connector cabling widely used in data centers.
Suitable for
 Switch-to-switch links in data center racks
 Server uplinks and top-of-rack aggregation
 Storage area network (SAN) interconnects over multimode fiber
 Short-range campus or enterprise backbone connections
Key specifications
 Form factor: QSFP+ (Quad Small Form-factor Pluggable)
 Data rate: 40 Gbps aggregated (4 x 10 Gbps lanes)
 Fiber type: Multimode fiber (MMF)
 Connector type: MPO/MTP compatible multi-fiber interface
 Operating range: Short-range multimode links (typically up to 100 m on OM3 and up to 150 m on OM4, subject to fiber type and channel conditions)
 Hot-pluggable: Yes
 Typical applications: Ethernet, data center interconnect, SAN
How to use
Insert the QSFP+ transceiver into an available QSFP port on a compatible switch, router or host adapter while the device is powered on; the hot-pluggable design permits installation without shutting down the system. Connect an MPO/MTP multimode patch cable between the module and the matching MPO-enabled harness or breakout assembly. Verify link status through the network device’s management interface and configure port speed and VLANs as required by your network design.
Usage recommendations
Choose multimode fiber of appropriate grade (OM3 or OM4) to meet desired reach and performance. Use MPO/MTP cabling and polarity-correct patching or breakouts for 40G links. Ensure QSFP+ slot firmware and device driver compatibility with the transceiver and perform link tests after installation to confirm optical power levels and signal integrity.

## FAQ

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

The price is 92.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 423 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 11.08.2026 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/4466396/59855254_large.webp