# Transceiver CBO QSFP-40G-SR4 Fiber Optic 40Gbps Short Range

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-qn-bo--4466405
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-SR4-QN-BO
**EAN:** 4063232073767
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.99 €
**Prices and availability valid until:** 2026-08-19 23:59
**Price without VAT (21%):** 77.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-qn-bo--4466405

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.08.2026 | free |
| Pickup points | 20.08.2026 | 1.79 EUR |
| Courier delivery to door | 20.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP-40G-SR4 is a fiber optic QSFP transceiver supporting 40 Gbps short-range links. Designed for data center and high‑speed networking, it provides multi‑lane 40G connectivity over multimode fiber for intra-rack and short-distance links. The module enables high-throughput aggregation, low-latency connections and is suitable for switches, routers and servers requiring 40G SR interfaces.

## Long description

The Transceiver CBO QSFP-40G-SR4 Fiber Optic 40Gbps Short Range is a quad‑lane QSFP module designed to support 40 Gbps short‑range links over multimode fiber. Intended for data center and high‑speed networking environments, this BlueOptics module provides multi‑lane 40G connectivity for intra‑rack and short‑distance links, enabling high throughput and low latency connections between switches, routers and servers with 40G SR interfaces.
Advantages
This QSFP-40G-SR4 transceiver delivers high aggregate bandwidth by combining four parallel lanes to carry a total of 40 Gbps. The form factor offers hot‑plug capability and compact QSFP dimensions for dense port deployments. Optimized for short‑range multimode fiber links, the module reduces latency and supports high‑speed aggregation while maintaining compatibility with standard QSFP cages and optical connectors.
Suitable for
 Intra‑rack switch-to-switch connections in data centers
 Server uplinks requiring 40 Gbps short‑range optical links
 Aggregation links within high‑density networking racks
 Low‑latency connections for high‑performance computing clusters
Key specifications
 Data rate: 40 Gbps aggregate (4 parallel lanes)
 Optical interface: QSFP multimode fiber
 Range: short‑range operation over multimode fiber (designed for intra‑rack and short distance)
 Wavelength: parallel multimode transceiver wavelengths per lane (designed for SR applications)
 Form factor: QSFP (compact, hot‑pluggable)
 Typical applications: data center 40G SR links, server uplinks, switch interconnects
How to use
Install the QSFP transceiver into a compatible QSFP port on a switch, router or server following the equipment manufacturer's guidance. Connect the multimode fiber cable with the appropriate MPO/MTP connector to the module's optical interface, ensuring correct polarity and secure connection. Verify link status and negotiate the expected 40 Gbps SR mode in the host device's network configuration. Follow standard electrostatic discharge (ESD) precautions during handling and avoid touching the optical interfaces to prevent contamination.
Usage recommendations
For reliable performance, use certified multimode fiber cables and MPO/MTP connectors rated for 40G SR operation, keep connector endfaces clean, and confirm that the connected equipment supports QSFP 40G SR links. Maintain recommended fiber bend radii and inspect link diagnostics in the host device to monitor optical power and signal integrity.

## FAQ

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

The price is 93.99 € (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 17.08.2026 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/4466405/59879337_large.webp