# Optical Transceiver Module CBO QSFP28-100G-LR4-DE 100G LR4, QSFP28 4x25G, single-mode, long-reach

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-100g-lr4-de-bo--4466686
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-100G-LR4-DE-BO
**EAN:** 4063232161600
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 430.99 €
**Prices and availability valid until:** 2026-08-10 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-de-bo--4466686

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-100G-LR4-DE is a QSFP28 optical transceiver module compatible with 100G LR4 applications. It supports 100 Gigabit Ethernet via four 25G lanes over single-mode fiber for long-reach links. Designed for data centers and carrier networks, it provides reliable high-speed connectivity for aggregation, core, and metro links, simplifying upgrades and enabling extended fiber runs.

## Long description

The Optical Transceiver Module CBO QSFP28-100G-LR4-DE is a QSFP28 form-factor module engineered for 100 Gigabit Ethernet LR4 links. It aggregates four 25G lanes into a single QSFP28 interface and operates over single-mode fiber to deliver long-reach connectivity for data centers, carrier networks and metro applications. The module supports standard LR4 transmission characteristics, enabling high-capacity uplinks and connections between aggregation and core network nodes while simplifying fiber infrastructure upgrades.
Advantages
This QSFP28 100G LR4 module offers compact QSFP28 packaging with four independent 25G channels for efficient use of port density and reduced rack space. Using single-mode optics for long-reach performance, it enables stable transmission over extended distances and is suitable for carrier-class deployments. Compatibility with 100 Gigabit Ethernet LR4 makes it interoperable with standard switches, routers and optical equipment that accept QSFP28 LR4 optics.
Suitable for
 100G uplinks between aggregation and core switches in data centers
 Long-reach metro and carrier links over single-mode fiber
 High-capacity interconnects between colocation sites
 Network upgrades where migration from multiple 10/25G links to 100G is required
Key specifications
 Data rate: 100 Gbps aggregated via 4 × 25 G lanes
 Form factor: QSFP28
 Fiber type: single-mode fiber
 Reach: long-reach class suitable for metro and carrier distances over single-mode fiber
 Optical interface: LR4 wavelength multiplexing for four channels
 Connector type: standard duplex LC (or compatible MPO-LC interface depending on host transceiver cage)
How to use
Install the QSFP28 module into a compatible QSFP28 port on switches, routers or optical transport equipment following standard hot-plug procedures. Ensure the host device supports 100G LR4 optics and configure the port for 100 Gigabit Ethernet operation as required by your network. Use appropriate single-mode fiber cabling and LC/APC or host-compatible MPO adapters to connect to the remote transceiver. Monitor link status via the host device and verify signal integrity using available diagnostic functions.
Usage recommendations
Use factory-tested single-mode fiber and maintain proper cable cleanliness to ensure signal quality. Verify optical budgets and link distances before deployment and consult the host equipment compatibility list for confirmed interoperability with QSFP28 LR4 modules.

## FAQ

### How much does the CBO QSFP28-100G-LR4-DE QSFP28 100G LR4 module 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 10.08.2026 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/4466686/59861890_large.webp