# SFP fiber optic transceiver CBO J4858DCM 1250 Mbit/s 850 nm

**URL:** https://aio.lv/en/product--blueoptics-j4858dcm-bo--4465223
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** J4858DCM-BO
**EAN:** 4063232060224
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-j4858dcm-bo--4465223

## 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

Compact SFP fiber optic transceiver CBO J4858DCM supporting 1250 Mbit/s data rate at 850 nm wavelength. Designed for short-range multimode fiber links, it provides a hot-pluggable interface for switches, routers and media converters. Ideal for adding 1.25 Gbps optical connectivity in server rooms, access networks and enterprise LANs with straightforward installation and compatibility with standard SFP slots.

## Long description

The SFP fiber optic transceiver CBO J4858DCM 1250 Mbit/s 850 nm is a compact, hot-pluggable module designed for short-range multimode fiber links. It supports a 1.25 Gbit/s data rate over 850 nm wavelength, providing optical connectivity for switches, routers and media converters in server rooms, access nodes and enterprise LAN environments. The module fits standard SFP slots and is intended to simplify the addition of optical ports where short-reach multimode connections are required.
Advantages
This SFP transceiver offers a small form factor and hot-pluggable operation for quick installation and replacement without powering down equipment. With support for 1250 Mbit/s at 850 nm it is optimized for short-range multimode fiber links, delivering reliable 1.25 Gbps connectivity. Compatibility with standard SFP interfaces ensures broad interoperability with networking equipment that accepts SFP optical modules.
Suitable for
 Short-range multimode fiber connections in data centers and server rooms
 Upgrading copper ports to 1.25 Gbps optical links on switches and routers
 Interconnection between access switches and media converters
 Enterprise LAN segments requiring optical uplinks over multimode cable
Key specifications
 Optical wavelength: 850 nm
 Data rate: 1.25 Gbit/s (1250 Mbit/s)
 Form factor: SFP (small form-factor pluggable)
 Fiber type: Multimode fiber (short-range applications)
 Connector type: LC duplex (common for SFP multimode transceivers)
 Hot-pluggable: Yes
How to use
Insert the transceiver into a compatible SFP slot on the switch, router or media converter until it latches. Connect multimode fiber with the appropriate LC duplex patch cord, ensuring correct transmit/receive alignment. Verify link status via the host device LEDs or management interface and ensure transceiver and fiber specifications match the intended connection distance and type. To remove, depress the latch and pull the module straight out without twisting.
Usage recommendations
Use multimode OM1/OM2/OM3 fiber that matches the required reach for 850 nm operation and avoid bending fibers beyond their minimum bend radius. Keep optical connectors clean and use dust caps when the module is not in use. Confirm SFP slot compatibility with the host device and check link parameters after installation for stable operation.

## FAQ

### How much does the SFP transceiver CBO J4858DCM 1250 Mbit/s 850 nm 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 — 1039 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/4465223/59848071_large.webp