# Fiber Optic Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cwdm4-so-bo--4466677
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-CWDM4-SO-BO
**EAN:** 4063232075334
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 301.49 €
**Prices and availability valid until:** 2026-08-24 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-so-bo--4466677

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-100G-CWDM4 is a 100G CWDM4 fiber optic transceiver in QSFP28 form factor. It provides 100 Gbps connectivity over CWDM4 wavelengths for high-density server, switch and data center links. Designed for short-to-medium reach multimode/single-mode CWDM4 deployments, it delivers compact, hot-pluggable optical interface for scalable network uplinks and interconnects.

## Long description

The BlueOptics Fiber Optic Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 is a compact QSFP28 module that enables 100 Gbps optical links using coarse wavelength division multiplexing (CWDM4). It supports high-density server, switch and data center interconnects with a hot-pluggable QSFP28 form factor. Intended for short-to-medium reach CWDM4 deployments, the transceiver provides a standardized optical interface for scalable uplinks and aggregation links over single-mode fiber.
Advantages
This 100G CWDM4 transceiver combines a small QSFP28 footprint with low power consumption and industry-standard optical interfaces, enabling efficient use of switch port density. The module supports CWDM4 wavelength multiplexing to carry 100 Gbps over four CWDM channels, reducing fiber-count requirements compared with parallel optics. Hot-pluggable design simplifies installation and replacement without shutting down host equipment. Compatibility with standard QSFP28 ports and single-mode fiber links makes it suitable for mixed vendor environments.
Suitable for
Data center uplinks and spine-to-leaf switch connections
High-density server aggregation and top-of-rack switch links
Campus backbone links and metropolitan short-to-medium reach optical connections
Key specifications
Form factor: QSFP28 (hot-pluggable)
Data rate: 100 Gbps aggregate
Optical technology: CWDM4 wavelength multiplexing over single-mode fiber
Reach: short-to-medium reach single-mode fiber (CWDM4 standard distances)
Connector type: LC duplex (typical for CWDM4 modules)
Power consumption: low-power QSFP28 class (typical values depend on implementation)
How to use
Install the QSFP28 module into a compatible QSFP28 port on a switch, router or network host while the device is powered on — the hot-pluggable design permits insertion and removal without powering down the system. Use LC duplex single-mode fiber patch cords to connect to the remote CWDM4-compatible transceiver. Ensure correct mapping of transmit and receive lanes and verify link status via the host device management interface. Follow vendor instructions for module handling, electrostatic discharge precautions and port configuration (speed and encoding settings) where applicable.
Usage recommendations
For reliable operation, use single-mode fiber rated for CWDM wavelengths and maintain clean LC connector endfaces. Confirm that both ends of the link support CWDM4 and QSFP28 optical parameters, and verify distance and loss budgets for your specific deployment. Monitor port diagnostics (if available) to track optical power and temperature, and replace modules following manufacturer handling guidelines to avoid damage.

## FAQ

### How much does the CBO QSFP28-100G-CWDM4 Fiber Optic 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 24.08.2026 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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