# Network transceiver module CBO ET7304-SR-BO QSFP28 100000 Mbit/s 850 nm

**URL:** https://aio.lv/en/product--blueoptics-et7304-sr-bo--4467052
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** ET7304-SR-BO
**EAN:** 4063232140919
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 102.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 84.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-et7304-sr-bo--4467052

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

CBO ET7304-SR-BO is a QSFP28 network transceiver module supporting 100000 Mbit/s data rate and 850 nm wavelength. Designed for short-range multimode fiber links, it provides high-density 4-channel connectivity in data center and enterprise switching environments. Use it to upgrade or replace compatible QSFP28 ports for reliable high-speed optical links.

## Long description

The BlueOptics CBO ET7304-SR-BO QSFP28 is a high-density optical transceiver module engineered for short-range multimode fiber connections. Supporting a data rate of 100000 Mbit/s and an 850 nm wavelength, this QSFP28 module consolidates four parallel channels into a single pluggable form factor, enabling compact, high-throughput links in data center and enterprise switching environments. Designed for insertion into compatible QSFP28 ports, it is intended for use where reliable, low-latency 100GbE optical connectivity is required over multimode fiber.
Advantages
The module offers four parallel lanes in a single QSFP28 package, allowing space-efficient deployment and simplified cable management. Operation at 850 nm with multimode fiber is optimized for short-range links, reducing component cost while maintaining high throughput. The pluggable form factor enables hot-swap replacement and quick upgrades without disrupting system operation, and the standardized QSFP28 interface ensures compatibility with a wide range of switches and transceivers that support QSFP28 optics.
Suitable for
100 Gigabit Ethernet short-reach connections over multimode fiber (MMF)
Top-of-rack and spine-switch links in data centers
High-density aggregation in enterprise switching environments
Upgrading or replacing QSFP28 ports for increased bandwidth
Key specifications
Form factor: QSFP28, 4-channel parallel transceiver
Maximum data rate: 100000 Mbit/s (100 Gb/s)
Operating wavelength: 850 nm
Fiber type: multimode fiber (MMF), optimized for short reach
Typical reach: short-range multimode links (sector-typical distances for 850 nm MMF)
Hot-pluggable pluggable transceiver for easy replacement
How to use
Install the QSFP28 module into a compatible QSFP28 port on your switch or router, ensuring the module is oriented correctly and seats fully into the cage. Connect suitable multimode fiber patch cables or breakout assemblies matched to the transceiver’s 4-channel parallel configuration. After insertion, verify link status and diagnostic data via the host device’s management interface. For safe removal, follow the host equipment’s hot-swap procedure to avoid disrupting active links.
Usage recommendations
Use OM3/OM4 multimode fiber and appropriate MPO/MTP or breakout cabling rated for 100 Gb/s to achieve reliable short-range performance. Maintain proper fiber cleanliness and follow manufacturer guidelines for insertion loss and connector handling. Confirm compatibility with the host equipment’s QSFP28 specifications and firmware support before deployment.

## FAQ

### How much does the CBO ET7304-SR-BO QSFP28 100000 Mbit/s 850 nm cost, and is it available for purchase?

The price is 102.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1887 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 23.07.2026 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/4467052/59856244_large.webp