# Fiber optic QSFP28 transceiver CBO QSFP28-100G-SR4 100G SR4 multimode

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-sr4-sp-bo--4466727
**Data updated:** 2026-02-24 11:00 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-SR4-SP-BO
**EAN:** 4063232065410
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 101.99 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 84.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-100g-sr4-sp-bo--4466727

## 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 QSFP28-100G-SR4 is a fiber optic QSFP28 transceiver module supporting 100G SR4 multimode operation. Designed for short-reach 100 Gigabit Ethernet links in data centers and enterprise networks, it enables high-density 100G connectivity over multimode fiber. Use cases include server-to-switch and switch-to-switch interconnects, offering compact form factor and hot-pluggable convenience.

## Long description

CBO QSFP28-100G-SR4 is a fiber optic QSFP28 transceiver module that supports 100G SR4 multimode operation for short-reach 100 Gigabit Ethernet links. Designed for high-density data center and enterprise network environments, this compact, hot-pluggable module provides four parallel lanes of multimode fiber connectivity to enable server-to-switch and switch-to-switch interconnects. The module is compatible with QSFP28 ports and offers a small form factor suitable for modern rack and spine-leaf architectures.
Advantages
The transceiver delivers reliable short-reach 100G performance over multimode fiber with a compact QSFP28 form factor and hot-pluggable design that simplifies deployment and replacement without powering down equipment. It supports four parallel lanes to achieve aggregate 100G bandwidth while enabling high port density in switches and routers. The module's design minimizes space and power requirements compared with discrete optics solutions and is intended for seamless integration into existing multimode fiber infrastructures.
Suitable for
 Short-reach 100 Gigabit Ethernet links in data centers
 Server-to-switch and switch-to-switch interconnects
 High-density aggregation and spine-leaf network fabrics
 Upgrading multimode fiber links to 100G capacity
Key specifications
 Form factor: QSFP28
 Data rate: 100 Gbps aggregate (4 × 25 Gbps lanes)
 Transmission mode: SR4 multimode (parallel optics)
 Optical medium: Multimode fiber (OM3/OM4 recommended)
 Interface: MPO/MTP connector for 4‑lane parallel trunk
 Hot-pluggable: Yes
 Typical application: Short-reach data center links
How to use
Install the QSFP28 module into a compatible QSFP28 port on a switch, router, or network adapter while the host device is powered according to the vendor's maintenance procedures. Connect the module to the multimode fiber trunk using an MPO/MTP cable with appropriate polarity and fiber type (OM3 or OM4 as recommended). Verify link status and performance via the host device management interface and monitor signal parameters where supported. Replace or re-seat the module as needed without powering down systems, following electrostatic discharge (ESD) precautions.
Usage recommendations
Use OM3 or OM4 multimode fiber for intended reach and performance; ensure correct MPO/MTP polarity and cleanliness of connectors to maintain signal quality. Confirm compatibility with the host equipment vendor and firmware to avoid interoperability issues. Follow standard ESD handling and data center cabling best practices during installation and maintenance.

## FAQ

### How much does the CBO QSFP28-100G-SR4 QSFP28 100G SR4 transceiver cost, and is it available for purchase?

The price is 101.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1850 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/4466727/59855699_large.webp