# Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 fiber optic transceiver

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cwdm4-cn-bo--4466652
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-CWDM4-CN-BO
**EAN:** 4063232075082
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 301.49 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 249.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cwdm4-cn-bo--4466652

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.08.2026 | free |
| Pickup points | 31.08.2026 | 1.79 EUR |
| Courier delivery to door | 31.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-100G-CWDM4 is a QSFP28 100G CWDM4 fiber optic transceiver designed for high-speed data transmission over single-mode fiber. It supports 100 Gigabit Ethernet using CWDM4 wavelength division multiplexing, fits QSFP28 ports, and is suitable for data center interconnects, campus backbones and carrier networks. The module enables compact 4-channel CWDM connectivity and straightforward hot-pluggable deployment to expand or upgrade network capacity.

## Long description

The Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 fiber optic transceiver is a hot-pluggable optical module designed for 100 Gigabit Ethernet links over single-mode fiber. It implements CWDM4 wavelength division multiplexing across four channels to carry 100 Gbit/s aggregated bandwidth through a single QSFP28 port. The module is intended for use in data center interconnects, campus backbone links and carrier access where compact, high-density optical connectivity and straightforward deployment are required.
Advantages
This QSFP28 CWDM4 transceiver supports 100G data rates while maintaining compact QSFP28 form-factor compatibility, enabling high-density port deployments. The module provides four CWDM channels to transmit aggregated 100 Gbit/s over single-mode fiber, helping to reduce fiber count and simplify cabling compared with multiple parallel optics. It is hot-pluggable for minimal service disruption during installation or replacement and is built to industry-standard electrical and optical interfaces for broad interoperability with compatible switches and routers.
Suitable for
Data center interconnects and server-to-switch links
Campus backbone and building distribution links
Carrier aggregation and metro access connections
High-density switch and transport platform ports
Key specifications
Form factor: QSFP28
Data rate: 100 Gigabit Ethernet
Optical technology: CWDM4 wavelength division multiplexing (4 channels)
Fiber type: Single-mode fiber (SMF)
Connector interface: Duplex LC (or specified system interface for CWDM4 breakout)
Transmission distance: typical short to medium reach over single-mode fiber (see system compatibility for exact range)
Hot-pluggable: Yes
How to use
Install the QSFP28 module into a compatible QSFP28 port on a switch or router while the host is powered on; the hot-pluggable design allows insertion and removal without powering down the system. Connect single-mode fiber using the appropriate LC connectors or required breakout cables to the remote end. Verify link status and transmit/receive parameters through the host device management interface. Ensure firmware and transceiver compatibility with the network equipment to avoid forced shutdown or downgrades by vendor lock mechanisms.
Usage recommendations
For reliable operation, use single-mode fiber of appropriate attenuation and maintain clean connector endfaces. Confirm that the network equipment supports 100G CWDM4 QSFP28 modules and follow vendor guidance for optical power budgets and link distance planning. Replace modules in a static-free environment and handle them by the housing to avoid contamination or damage to the optical interfaces.

## FAQ

### How much does the CBO QSFP28-100G-CWDM4 QSFP28 100G CWDM4 transceiver cost, and is it available for purchase?

The price is 301.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 384 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 26.08.2026 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/4466652/59870879_large.webp