# CBO Transceiver QSFP-40G-SR4 40G 850nm Fiber Optic Module

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-sr4-ia-bo--4466393
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-SR4-IA-BO
**EAN:** 4063232073866
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.99 €
**Prices and availability valid until:** 2026-08-18 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-ia-bo--4466393

## 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 40G fiber optic transceiver module operating at 850 nm designed for short-range multimode links. The QSFP form factor supports 40 Gigabit Ethernet aggregation and data center connectivity. Use cases include switch-to-switch, server uplinks and spine-leaf topologies. Provides hot-pluggable installation and standard QSFP interoperability.

## Long description

CBO Transceiver QSFP-40G-SR4 40G 850nm Fiber Optic Module is a hot-pluggable QSFP form-factor transceiver designed for short-range multimode fiber links at 850 nm. Intended for 40 Gigabit Ethernet environments, the module enables aggregation and high-density connectivity in data center topologies such as switch-to-switch links, server uplinks and spine-leaf architectures. The module supports standard QSFP interoperability and is optimized for multimode cabling infrastructures.
Advantages
The transceiver provides a compact QSFP footprint that consolidates four lanes into a single 40G interface, reducing port density and cabling complexity. Hot-pluggable design allows installation or replacement without powering down equipment. Operating at 850 nm, it is tuned for short-range multimode fiber with stable optical performance suitable for typical data center distances. Compliance with common QSFP specifications ensures compatibility with a broad range of switches and network devices.
Suitable for
 40 Gigabit Ethernet switch-to-switch connections over multimode fiber
 Server uplinks and aggregation ports in data centers
 Spine-leaf network topologies requiring short-range high-bandwidth links
 High-density patch panels and QSFP-enabled line cards
Key specifications
 Form factor: QSFP (Quad Small Form-factor Pluggable)
 Data rate: 40 Gbit/s aggregate
 Operating wavelength: 850 nm
 Fiber type: Multimode fiber (MMF)
 Range: Designed for short-reach multimode links (data center distances)
 Connector interface: Compatible with MPO/MTP-style multimode connectors
 Installation: Hot-pluggable
How to use
Insert the QSFP transceiver into a compatible QSFP port on a switch, router or network card until it clicks into place. Connect the multimode fiber assembly with the matching MPO/MTP connector, ensuring proper polarity and fiber type. The module is intended for short-range links; choose appropriate multimode patch cords and trunking for the target distance. After physical installation, verify link status and speed through the network device management interface and monitor optical levels where available.
Usage recommendations
Use OM3 or OM4 multimode fiber for optimal reach and performance at 850 nm, and ensure clean connectors to maintain signal integrity. Confirm device compatibility with QSFP interfaces and, where applicable, check switch vendor guidelines for third-party transceiver support. Replace or reseat the module only when necessary and observe ESD precautions during handling.

## FAQ

### How much does the CBO QSFP-40G-SR4 40G 850nm Transceiver 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/4466393/59857350_large.webp