# Fiber optic SFP transceiver CBO J4859C-BO 1250 Mbit/s LC LX single-mode 10000 m

**URL:** https://aio.lv/en/product--blueoptics-j4859c-bo--4472401
**Data updated:** 2026-02-23 13:20 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** J4859C-BO
**EAN:** 4049759257880
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-j4859c-bo--4472401

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.99 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

CBO J4859C-BO is a fiber optic SFP transceiver providing 1250 Mbit/s data rate with LC connector and LX wavelength for single-mode links up to 10,000 m. Designed for insertion in compatible SFP ports, it supports long-distance optical connections for switches, routers and optical equipment, enabling reliable backbone or metro links.

## Long description

CBO J4859C-BO is a fiber optic SFP transceiver that provides a 1250 Mbit/s data rate over single-mode fiber with an LC connector and LX wavelength. The module is designed for insertion into compatible SFP ports of switches, routers and optical equipment to establish single-mode links up to 10,000 m. It supports long-distance optical connections for backbone, metro or campus networks where a compact SFP form factor and reliable point-to-point transmission are required.
Advantages
The transceiver offers a compact SFP form factor that simplifies installation and hot-swap replacement in standard networking devices. With single-mode LX optics and LC connectivity it delivers stable signal transmission across long distances up to 10 km while maintaining a defined 1250 Mbit/s line rate. Its compatibility with a wide range of optical network equipment reduces the need for specialized modules and streamlines network spare-part management.
Suitable for
 Long-distance single-mode links between switches and routers
 Backbone and metro fiber connections up to 10 km
 Point-to-point optical uplinks in enterprise and ISP networks
 Replacement or spare module for devices with SFP slots
Key specifications
 Data rate: 1250 Mbit/s
 Optical mode: single-mode
 Wavelength/type: LX
 Connector type: LC
 Maximum reach: 10,000 m (10 km)
 Form factor: SFP (small form-factor pluggable)
How to use
Insert the transceiver into a compatible SFP port until it locks in place, then connect a single-mode fiber cable terminated with LC connectors. Ensure both ends use matching LX single-mode optics and verify link status on the networking device. If necessary, configure interface parameters on the switch or router (speed, duplex, or specific optical settings) according to the device documentation. For hot-swap replacement, remove the existing module following the equipment safety procedures and insert the new transceiver while the device is powered if the platform supports hot-swapping.
Usage recommendations
Handle the LC connector and optical interfaces with care to avoid contamination. Use dust caps when ports are unused, clean connectors with approved fiber cleaning tools, and follow manufacturer guidelines for ESD and mechanical handling. Verify compatibility with your network equipment and update device firmware if required to ensure proper recognition and performance.

## FAQ

### How much does the Fiber optic SFP CBO J4859C-BO 1250 Mbit/s cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 425 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 17.07.2026 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/4472401/59845702_large.webp