# Fiber optic transceiver CBO QSFP28-100G-LR4 100G LR4 module

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-lr4-rw-bo--4466701
**Data updated:** 2026-02-24 11:00 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-LR4-RW-BO
**EAN:** 4063232075563
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 430.99 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 356.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-100g-lr4-rw-bo--4466701

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.08.2026 | free |
| Pickup points | 21.08.2026 | 1.79 EUR |
| Courier delivery to door | 21.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-100G-LR4 is a fiber optic transceiver module supporting 100G LR4 connectivity. Designed for long-reach single-mode links, it fits QSFP28 ports and enables high-speed data transmission between switches, routers and data center equipment. Use it to extend 100 Gigabit Ethernet links over single-mode fiber for backbone, aggregation and inter-rack connections.

## Long description

The BlueOptics Fiber optic transceiver CBO QSFP28-100G-LR4 100G LR4 module is a QSFP28 form-factor module for single-mode fiber links that supports 100 Gigabit Ethernet LR4 transmission. It is designed to fit QSFP28 ports on switches, routers and data center equipment and to enable long-reach connections over single-mode fiber. The module converts electrical signals to optical LR4 signals and back, allowing reliable high-speed data transport for backbone, aggregation and inter-rack links.
Advantages
This 100G LR4 transceiver provides long-reach single-mode performance with a compact QSFP28 footprint, reducing the number of optical lanes required for high-bandwidth links. It supports interoperable QSFP28 interfaces for straightforward hot-plug installation and replacement, and its LR4 design uses four wavelength channels for single-mode transmission, enabling extended distance links while maintaining 100GbE throughput and low latency.
Suitable for
 Long-reach 100 Gigabit Ethernet backbone connections over single-mode fiber
 Aggregation and inter-rack links in data centers and campus networks
 High-speed uplinks between switches and routers supporting QSFP28
Key specifications
 Form factor: QSFP28
 Data rate: 100 Gbit/s
 Optical type: LR4 (long reach, four-wavelength DWDM-style transmission over SMF)
 Fiber: single-mode fiber compatibility
 Connector type: compatible with standard LC duplex/quad or MPO variants depending on equipment interface (check host port compatibility)
 Use case: designed for long-distance links such as backbone and inter-rack connections
How to use
Install the transceiver into a compatible QSFP28 port on your switch or router while the device is powered on, following the host equipment instructions for hot-plug modules. Connect appropriate single-mode fiber patch cords and ensure transmit and receive fibers are correctly aligned. Verify link status through the host device management interface and monitor optical parameters if supported. For replacement, remove the existing module carefully by releasing the latch and sliding the module out, then insert the new module until it seats and locks.
Usage recommendations
Confirm that the host equipment supports QSFP28 LR4 transceivers and consult the switch or router compatibility list before installation. Use appropriate single-mode fiber cabling and clean connectors prior to mating. Observe electrostatic discharge (ESD) precautions during handling and avoid bending the fiber beyond recommended bend radii to preserve optical performance.

## FAQ

### How much does the CBO QSFP28-100G-LR4 fiber optic transceiver cost, and is it available for purchase?

The price is 430.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 449 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 18.08.2026 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/4466701/59875999_large.webp