# Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 optical module

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cwdm4-ch-bo--4466650
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-CWDM4-CH-BO
**EAN:** 4063232075051
**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-ch-bo--4466650

## 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 100G CWDM4 QSFP28 optical transceiver module designed for high‑speed fiber optic links. It supports 100 Gigabit Ethernet over CWDM4 wavelengths in a QSFP28 form factor, suitable for data center interconnects and aggregation links. Use it to add 100G connectivity between QSFP28 ports for short- to medium‑reach fiber deployments; it provides straightforward module replacement and compatibility with QSFP28 ports that accept CWDM4 optics.

## Long description

Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 optical module is a 100G CWDM4 QSFP28 transceiver designed for high‑speed fiber optic links. The module supports 100 Gigabit Ethernet over four coarse WDM wavelengths in a compact QSFP28 form factor, enabling aggregation and interconnect links in data center and enterprise network environments. It is intended for straightforward replacement in QSFP28 ports that accept CWDM4 optics and for adding 100G connectivity on short- to medium-reach single-mode fiber runs.
Advantages
The module provides four-wavelength CWDM operation in a standardized QSFP28 package, offering a combination of high bandwidth and compact density. It supports 100G transmission with low power consumption relative to equivalent single-lambda solutions, and its hot-pluggable QSFP28 form factor simplifies installation and maintenance. Built for compatibility with typical QSFP28 interfaces, the transceiver enables predictable performance for aggregation and interconnect tasks without requiring major hardware changes.
Suitable for
 100 Gigabit Ethernet links between QSFP28 ports in data centers
 Aggregation and spine-leaf interconnects on single-mode fiber
 Short- to medium-reach campus or enterprise fiber runs
 Replacement or upgrade of existing CWDM4-capable QSFP28 ports
Key specifications
 Form factor: QSFP28
 Data rate: 100 Gbps aggregate (CWDM4)
 Fiber type: Single-mode fiber
 Wavelength: CWDM4 four-channel coarse WDM
 Reach: short- to medium-reach single-mode links (vendor-specific distances)
 Connector type: LC duplex (typically for CWDM4 QSFP28)
 Power consumption: low-power QSFP28 class (typical values depend on implementation)
How to use
Install the QSFP28 transceiver into a compatible QSFP28 port until it seats securely, following equipment vendor instructions for hot-plug handling. Connect single-mode LC duplex fiber patch cords between corresponding ports, ensuring correct orientation and clean connectors to maintain optical performance. Configure link settings on connected switches or routers as required for 100 Gigabit Ethernet, and verify link status and diagnostics through the host device management interface. If the host requires specific vendor support, confirm compatibility before deployment.
Usage recommendations
To ensure reliable performance, use high-quality single-mode fiber and LC connectors, inspect and clean connectors before mating, and follow the switch or router vendor guidance for CWDM4 optics. Monitor optical power and link diagnostics after installation, and replace the module in a controlled maintenance window if any interoperability or performance issues appear.

## FAQ

### How much does the Transceiver CBO QSFP28-100G-CWDM4 100G QSFP28 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

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