# Fiber optic QSFP28 transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 module

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-cwdm4-ps-bo--4466672
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-CWDM4-PS-BO
**EAN:** 4063232075266
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 301.49 €
**Prices and availability valid until:** 2026-08-19 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-ps-bo--4466672

## 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-CWDM4 is a fiber optic QSFP28 transceiver module supporting 100G data rates using CWDM4 technology. Designed for use in high-speed network equipment, it provides short-reach optical connectivity between switches, routers and servers. Suitable for data center interconnects and aggregation links, it enables high-bandwidth transmission over multimode fiber with a compact QSFP28 form factor.

## Long description

The Fiber optic QSFP28 transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 module is a compact QSFP28 form-factor optical module designed for 100Gbps links using coarse wavelength-division multiplexing (CWDM4). It provides short-reach single-mode optical connectivity for aggregation links and data center interconnects between switches, routers and servers. The module supports four CWDM channels aggregated to deliver a 100G Ethernet or similar 100G transport over suitable fiber infrastructure and is intended for high-density network equipment where small size and high bandwidth are required.
Advantages
The module combines the QSFP28 compact footprint with CWDM4 optics to enable efficient 100G transmission over single-mode fiber at short to medium distances. It supports hot-pluggable installation for minimal service interruption and is compatible with standard QSFP28 cages and ports used in modern switches and routers. Its design reduces cabling complexity by aggregating four wavelengths into one transceiver, simplifying link deployment in data center and campus aggregation environments.
Suitable for
 Data center interconnects and spine-to-leaf aggregation links
 High-density switch-to-switch or switch-to-router 100G connections
 Server uplinks in rack or row-level network designs
 Short-reach single-mode fiber links within campus or carrier-neutral facilities
Key specifications
 Form factor: QSFP28 (hot-pluggable)
 Data rate: 100 Gbps aggregate (4×25 Gbps CWDM channels)
 Optical technology: CWDM4 wavelength-division multiplexing
 Fiber type: single-mode fiber
 Typical reach: short to medium distances over single-mode fiber (as specified by system requirements)
 Connector interface: MPO-style parallel connector compatible with CWDM4 cabling
How to use
Insert the QSFP28 transceiver into a compatible QSFP28 port on your switch, router or server adapter while the host port is powered, taking advantage of its hot-pluggable capability. Connect the appropriate single-mode MPO cable that matches CWDM4 channel assignments, ensuring correct fiber polarity and connector type. Verify link status and diagnostics through the network device management interface and monitor optical parameters such as received power and temperature to confirm proper operation.
Usage recommendations
Use certified single-mode MPO cabling rated for CWDM4 channels and ensure transceiver compatibility with the host equipment. Observe manufacturer guidelines for operating temperature and optical power budgets; perform link testing after installation and maintain clean connector end-faces to prevent signal loss.

## FAQ

### How much does the CBO QSFP28-100G-CWDM4 QSFP28 transceiver 100G 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 — 389 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

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