# Network transceiver module CBO BO28L859S1D QSFP28 100000 Mbit/s (optical)

**URL:** https://aio.lv/en/product--blueoptics-bo28l859s1d-bo--4471948
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** BO28L859S1D-BO
**EAN:** 4063232063232
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 102.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 84.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-bo28l859s1d-bo--4471948

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

CBO BO28L859S1D is a QSFP28 network transceiver module supporting 100000 Mbit/s. Designed for high-speed optical connections in data centers and enterprise networks, it enables 100 Gb/s links over compatible equipment with QSFP28 ports. Use cases include server uplinks, switch-to-switch interconnects and aggregation. Benefits: compact hot-pluggable form factor and interoperability with QSFP28-enabled hardware.

## Long description

CBO BO28L859S1D is a QSFP28 network transceiver module designed for 100000 Mbit/s optical links. The module provides a compact, hot-pluggable form factor for integration into QSFP28 ports on switches, routers and servers. Intended for high-density data center and enterprise network environments, this optical transceiver enables 100 Gb/s connections over compatible fiber infrastructure and supports typical use cases such as server uplinks, switch interconnects and aggregation paths.
Advantages
The transceiver offers a QSFP28 form factor that supports high port density and efficient rack-space utilization. Hot-pluggable design allows replacement or upgrade without powering down equipment, minimising maintenance downtime. The optical interface provides low-latency, high-throughput connectivity suitable for backbone links and uplinks. Built to industry form-factor standards, the module is interoperable with equipment that accepts QSFP28 optical modules.
Suitable for
 100 Gb/s server uplinks in data centers
 Switch-to-switch optical interconnects and spine-leaf architectures
 Aggregation links between distribution and core switches
 High-bandwidth point-to-point optical connections
Key specifications
 Interface: QSFP28 optical transceiver form factor
 Data rate: 100000 Mbit/s (100 Gb/s)
 Media type: optical fiber link
 Hot-pluggable: yes
 Typical applications: server uplinks, switch interconnects, aggregation
How to use
Install the module into a compatible QSFP28 port following the host device manufacturer’s mechanical insertion procedure. Connect appropriate single-mode or multimode fiber patch cords according to the supported fiber type and link budget of your network. Verify link status through the host device management interface and ensure transceiver settings match the network topology and speed requirements. Replace or remove the module only when the host allows hot-swap or during scheduled maintenance to avoid disrupting active links.
Usage recommendations
For reliable operation, use fiber patch cords and duplex/parallel cabling that meet the transceiver’s optical requirements and maintain controlled bend radius and clean connectors. Confirm compatibility with the host equipment’s QSFP28 port and firmware, and perform link tests after installation to validate signal integrity and throughput.

## FAQ

### How much does the CBO BO28L859S1D QSFP28 100000 Mbit/s transceiver cost, and is it available for purchase?

The price is 102.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1881 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 27.07.2026 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/4471948/59848288_large.webp