# SFP fiber optic transceiver CBO J4859C-LEG 1250 Mbit/s 1310 nm

**URL:** https://aio.lv/en/product--blueoptics-j4859c-leg-bo--4465228
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** J4859C-LEG-BO
**EAN:** 4063232046150
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-j4859c-leg-bo--4465228

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

SFP fiber optic transceiver CBO J4859C-LEG supports 1250 Mbit/s data rate at 1310 nm wavelength. Designed for use in optical networking equipment with SFP slots, it enables single-mode fiber links for mid-range connections. Typical applications include switches, routers and media converters where reliable fiber connectivity and straightforward hot-pluggable installation are required.

## Long description

The SFP fiber optic transceiver CBO J4859C-LEG 1250 Mbit/s 1310 nm is a compact single‑mode SFP module designed to provide reliable mid‑range fiber connections. It supports a data rate of 1250 Mbit/s and operates at a 1310 nm wavelength, making it suitable for standard serial optical links. The module is compatible with networking equipment that accepts SFP form‑factor modules and offers hot‑pluggable installation for minimal service disruption.
Advantages
This BlueOptics SFP transceiver delivers straightforward deployment with hot‑swappable operation and industry‑standard SFP compatibility. Its single‑mode optics and 1310 nm wavelength provide stable transmission over intermediate distances while maintaining low power consumption. The module is built to meet common optical networking requirements, offering consistent performance in switches, routers and media converters that support SFP ports.
Suitable for
Establishing single‑mode fiber links between network switches and routers
Connecting media converters to extend copper networks over fiber
Replacing or adding SFP ports in communications equipment for mid‑range links
Key specifications
Form factor: SFP (Small Form‑Factor Pluggable)
Optical mode: Single‑mode fiber
Wavelength: 1310 nm
Data rate: 1250 Mbit/s
Interface: LC duplex optical connector
Hot‑pluggable: Yes
How to use
Insert the SFP transceiver into an empty SFP slot on the network device while the device is powered on or during maintenance windows, following the vendor’s hot‑swap guidelines. Connect a single‑mode LC duplex fiber patch cable to the module’s optical port, ensuring correct transmit/receive orientation. Verify link status on the host device and configure interface settings (speed, duplex, and optical diagnostics) as required by the network equipment.
Usage recommendations
Use quality single‑mode LC duplex cables and maintain clean fiber connectors to ensure optimal signal transmission. Confirm compatibility with the host device’s SFP specifications before deployment and monitor optical power and link LEDs after installation to validate correct operation.

## FAQ

### How much does the SFP fiber transceiver CBO J4859C-LEG cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 390 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 23.07.2026 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/4465228/59847865_large.webp