# SFP transceiver BlueOptics J4859DCM 1250 Mbit/s Fiber optic 1310 nm

**URL:** https://aio.lv/en/product--blueoptics-j4859dcm-bo--4465230
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** J4859DCM-BO
**EAN:** 4063232056012
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-j4859dcm-bo--4465230

## 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

The BlueOptics J4859DCM is a fiber optic SFP transceiver with a maximum data transfer rate of 1250 Mbit/s and a wavelength of 1310 nm. It is designed for reliable network connections and is lightweight at 20 g. The product comes in a silver color and is sold individually. Ideal for enhancing network performance.

## Long description

The BlueOptics J4859DCM is an SFP fiber optic transceiver designed for single-channel data links. With a nominal wavelength of 1310 nm and a maximum data transfer rate of 1250 Mbit/s, this module supports standard fiber connections for gigabit and legacy serial optical networks. The transceiver is compact and lightweight (approximately 20 g) and is supplied as a single unit in a silver housing suitable for installation in compatible SFP ports.
Advantages
The module offers stable optical transmission at 1310 nm and a data rate of up to 1250 Mbit/s, making it suitable for many short- to medium-range fiber applications. Its SFP form factor ensures broad compatibility with switches, routers and media converters that accept SFP modules. The small physical size and light weight simplify handling and installation while conserving rack and chassis space.
Suitable for
 Upgrading or repairing SFP ports on switches and routers
 Establishing fiber links for industrial and office networks
 Connecting media converters and optical line equipment
 Temporary optical connections for testing and maintenance
Key specifications
 Interface type: SFP module
 Maximum data transfer rate: 1250 Mbit/s
 Operating wavelength: 1310 nm
 Housing color: silver
 Weight: 0.02 kg
How to use
Insert the BlueOptics J4859DCM into a compatible SFP port following the host device manufacturer’s instructions. Ensure correct orientation and that the port is powered down or handles hot-swap safely if supported. Connect fiber patch cables with suitable connectors to the module’s optical interface and verify link status via the host device. Observe proper ESD handling when installing or removing the transceiver.
Usage recommendations
For reliable performance, use single-mode fiber compatible with 1310 nm operation and follow the recommended fiber attenuation and connector cleanliness practices. Verify compatibility with the host equipment’s supported SFP profiles and firmware; where possible test the link after installation to confirm correct data throughput and optical levels.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Fiber ethernet cabling technology | 1000BASE |
| Wavelength | 1310 nm |
| Fiber optic connector | LC |
| Maximum transfer distance | 10000 m |
| Digital Diagnostics Monitoring (DDM) | Yes |
| Rx wavelength (max) | 1310 nm |
| Tx wavelength (max) | 1310 nm |
| Single-mode fiber (SMF) supported | Yes |
| SFP transceiver standard | LX |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 30 g |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.02 kg |

### Operational conditions

| Feature | Value |
|---|---|
| Maximum operating temperature | 70 °C |
| Minimum operating temperature | 0 °C |

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |

## FAQ

### How much does the SFP transceiver BlueOptics J4859DCM 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 — 396 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4465230/64290748_large.webp