Skip to content Skip to footer
ROC Telecom
Get a Quote
ROC Telecom
Close
Awaiting product image

J4858C

The Cisco J4858C is a Gigabit Ethernet SX small form-factor pluggable (SFP) transceiver designed for reliable short-range fiber connectivity. This hot-swappable module provides a cost-effective solution for extending your network infrastructure via multimode fiber cabling.

SKU: J4858C Brand: Product ID: 394430
Sell to Us Buy from Us

Description

Cisco J4858C Overview

The J4858C is actually a high-quality HP ProCurve Gigabit SX transceiver module that is frequently utilized within Cisco-compatible network environments to bridge fiber connectivity. This compact small form-factor pluggable device is designed for short-range data transmission over multimode fiber optic cabling. By integrating the J4858C into your existing switch infrastructure, you ensure reliable high-speed uplink performance for demanding enterprise applications. It features a robust metallic casing that protects internal components from electromagnetic interference while maintaining a slim profile for high-density port configurations.

Cisco J4858C Technical Details

Engineered for durability, the J4858C supports data rates of up to 1 Gbps and operates effectively at an 850nm wavelength. This hot-swappable component allows for seamless hardware upgrades or replacements without requiring a full system reboot, minimizing downtime for your network. It utilizes a standard LC duplex connector interface, making it universally compatible with common fiber patch cables found in server rooms. Whether you are expanding a local area network or connecting distributed switches, this transceiver provides the stable signal integrity required for mission-critical operations.

Who We Are
 
ROC Telecom is a family-owned, Texas-based company specializing in helping businesses unlock value from their networking and telecom equipment. From routers and switches to optical gear and more, we provide a seamless solution for businesses looking to sell, recover assets responsibly, or buy quality-tested equipment at competitive prices.
 
What We Do
 
We make it easy to:
  • Sell Used Equipment: Get a quick, hassle-free quote and maximize the value of your old IT gear.
  • Buy Certified Networking Equipment: Access affordable, quality-tested equipment from top brands like Cisco, Juniper, Ciena, Fujitsu, Infinera and more.
Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
  • Sustainable IT Solutions: Reduce waste and support environmentally responsible practices.
  • Competitive Pricing: Fair, fast, and accurate valuations for all your equipment.
  • Free Shipping Logistics: Fast, secure, and hassle-free shipping or pickup options for buyers and sellers.
Our Process
  1. Submit a Request: You can use the “Buy” or “Sell” buttons above to get started — or fill out a form, call us at 585-406-1248, or email bailey@roctelecom.com. Whatever’s easiest for you, we’ll make it quick and hassle-free.
  2. Quick Evaluation: We’ll assess your equipment—whether you’re looking to sell it or find the right gear for your needs—and provide a fair offer.
  3. Simple Logistics: Fast, secure, and straightforward shipping or pickup solutions.
  4. Value Delivered: Recover funds from unused equipment or save on quality-tested networking and telecom gear.
Call Now Button