# SFP transceiver CBO J4858C-BO 1250 Mbit/s 850 nm multimode

**URL:** https://aio.lv/en/product--blueoptics-j4858c-bo--4472403
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** J4858C-BO
**EAN:** 4049759257866
**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-j4858c-bo--4472403

## 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

SFP transceiver CBO J4858C-BO supports 1250 Mbit/s data rate and operates at 850 nm wavelength for multimode fiber links. Designed for hot-pluggable installation in compatible SFP ports, it enables short-range optical connections for switches, routers and networking equipment. Use it to extend or replace optical interfaces and maintain reliable data transmission over multimode fiber.

## Long description

The BlueOptics SFP transceiver J4858C-BO is a compact optical module designed for short-range multimode fiber links. It supports a data rate of 1250 Mbit/s and operates at an 850 nm wavelength, making it suitable for standard Gigabit Ethernet and fibre channel applications over multimode cabling. The module is hot-pluggable and intended for installation in compatible SFP ports on switches, routers and other networking equipment to provide reliable optical connectivity for short distances.
Advantages
This SFP transceiver delivers a predictable 1250 Mbit/s throughput and uses a common 850 nm VCSEL light source optimized for multimode fiber, enabling stable short-range performance. Its hot-pluggable design permits field replacement without powering down equipment, reducing maintenance windows. The compact SFP form factor conserves port space and is compatible with standard SFP cages on a wide range of network devices. The module is engineered for straightforward integration into existing multimode fiber links to restore or extend optical interfaces.
Suitable for
 Short-range Gigabit Ethernet connections over multimode fiber
 Interconnects between switches and routers within a data center or campus
 Repair or replacement of optical SFP ports on networking equipment
 Linking fiber patch panels and distribution frames in local installations
Key specifications
 Data rate: 1250 Mbit/s
 Wavelength: 850 nm
 Fiber type: Multimode
 Form factor: SFP (small form-factor pluggable), hot-pluggable
 Typical application: Short-range optical links (horizontal and intra-building)
How to use
Before installation, verify that the target device supports standard SFP modules and that the multimode fiber type and connector match the transceiver. With equipment powered according to the manufacturer's guidance, insert the SFP module into the SFP cage until it seats firmly and lock any retention mechanism if present. Connect the appropriate multimode fiber patch cable, ensuring correct end-face cleanliness and polarity. After insertion, confirm link status via device LEDs or management interface and monitor for stable signal and expected data rate.
Usage recommendations
Maintain proper fiber handling: clean connectors before mating, avoid tight bends in multimode cable, and use compatible fiber patch cords. For best results in short-range installations, match the transceiver to multimode patching (OM1/OM2/OM3/OM4 as supported by your cabling) and monitor link integrity after deployment.

## FAQ

### How much does the SFP transceiver CBO J4858C-BO 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 — 1037 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/4472403/59845504_large.webp