# Fiber Optic Transceiver CBO QSFP28-100G-LR4 100G LR4 single‑mode for 10 km

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-lr4-ps-bo--4466697
**Data updated:** 2026-02-24 11:00 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-LR4-PS-BO
**EAN:** 4063232075594
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 430.99 €
**Prices and availability valid until:** 2026-08-08 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-ps-bo--4466697

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-100G-LR4 is a QSFP28 form‑factor fiber optic transceiver supporting 100 Gigabit Ethernet over LR4 wavelengths for single‑mode fiber. Designed for long‑reach links (typical up to 10 km), it provides four‑lane 25 Gbps channels in a compact hot‑pluggable module. Use it to upgrade switches and routers for high‑speed backbone, data center interconnects and carrier links.

## Long description

CBO QSFP28-100G-LR4 is a QSFP28 form-factor fiber optic transceiver designed to deliver 100 Gigabit Ethernet over single-mode fiber for long-reach links up to 10 km. The module aggregates four 25 Gbps lanes into a compact hot-pluggable package compatible with QSFP28 ports, enabling high-bandwidth connectivity for switches, routers and optical line systems. It supports LR4 wavelengths and is intended for backbone, data center interconnect and carrier applications where reliable 100G links are required.
Advantages
The transceiver provides high-density 100G connectivity in a small QSFP28 module, reducing space requirements in network racks and line cards. Hot-pluggable design allows easy installation and replacement without powering down equipment. Operating over single-mode fiber and LR4 wavelength channels makes it suitable for long-reach links up to 10 km, maintaining signal integrity and low error rates. Compatibility with standard QSFP28 ports and four independent 25 Gbps lanes offers flexibility for various network architectures.
Suitable for
Data center interconnects between buildings or halls up to 10 km apart
High-speed backbone links in campus and metropolitan networks
Carrier and service provider aggregation and core links
Upgrading switches and routers to 100G capacity without major hardware changes
Key specifications
Form factor: QSFP28 (hot-pluggable)
Data rate: 100 Gigabit Ethernet (4 × 25 Gbps lanes)
Fiber type: single-mode fiber
Reach: up to 10 km over single-mode fiber
Transmission format: LR4 wavelengths (4-lane CWDM)
Connector type: duplex LC (optical)
Power consumption: typical module-level power consistent with QSFP28 class
Operating environment: standard commercial temperature range
How to use
Install the QSFP28 module into a compatible QSFP28 port on a switch, router or optical transceiver card while the device is powered according to the equipment vendor's hot-swap procedures. Connect single-mode fiber with LC duplex connectors, ensuring correct polarity and clean end faces. After insertion, verify link status through the host device’s management interface and confirm signal parameters and error counters. Follow equipment and fiber management best practices when routing and securing the cable.
Usage recommendations
For reliable long-reach operation, use ITU-compliant single-mode fiber with appropriate optical loss budget, perform connector cleaning before mating, and monitor link health via the host device. Match fiber type and transceiver specifications at both ends, and consult switch/router documentation for SFP/QSFP port settings and firmware compatibility.

## FAQ

### How much does the CBO QSFP28-100G-LR4 Fiber Optic Transceiver 100G 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 — 455 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 07.08.2026 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/4466697/59854484_large.webp