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StarTech. com J4859CST HPE J4859C Compatible SFP Transceiver - 1000BASE-LX 1GbE Fiber Module - LC Connector - Single/Multi Mode - 10km Distance

SKU: J4859CST
UPC: 065030865296
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MSRP: $78.91
$78.95
$74.95
Save: $3.96 (5.02%)
Warranty Information: Lifetime
Condition: New
Width: 1.52 (cm)
Height: 1.27 (cm)
Depth: 5.59 (cm)
Availability: Canada: High Availability
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Product Features

Description

Product Overview

The StarTech.com J4859CST SFP transceiver module delivers reliable fiber optic connectivity for Gigabit Ethernet networks. Designed as a direct replacement for the HPE J4859C module, it ensures seamless integration with HPE switches and routers while offering broad compatibility with other MSA-compliant networking equipment.

This transceiver supports 1000BASE-LX technology over both single-mode and multi-mode fiber, providing flexible deployment options for data centers, enterprise networks, and campus environments. With its hot-swappable design and Digital Diagnostic Monitoring (DDM) capabilities, it enables real-time performance tracking and easy maintenance without network downtime.

Relevant factors for this section include Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Signal
LC
Signal Type
Ports: 1Hot-pluggable,Hot-swappable
Compatibility & Standards
Compatibility100% HPE J4859C compatible; works with HPE switches 1400, 1700, 1820, 2520, 2530 and other MSA-compliant switches
StandardsMSA compliant; supports Digital Diagnostic Monitoring (DDM) for SNMP management
Network & Media
Network Technology1000BASE-LX Gigabit Ethernet at 1.25 Gbps
Fiber SupportSingle-mode and multi-mode fiber with LC duplex connector
DistanceUp to 10 km (6.2 miles)
Physical & Warranty
Form FactorHot-pluggable, hot-swappable SFP (mini-GBIC)
WarrantyLifetime warranty on the module

Technical Overview

Engineered for high-performance optical networking, the J4859CST transceiver operates at 1.25 Gigabit Ethernet speeds using 1310nm wavelength technology. It features a single LC duplex port that supports distances up to 10 kilometers, making it suitable for both short-range and extended fiber runs.

The module's MSA-compliant design ensures mechanical and electrical compatibility with a wide range of networking devices. DDM support allows network administrators to monitor temperature, voltage, laser bias current, and optical power through SNMP management tools, providing valuable insights for proactive network maintenance.

Relevant factors for this section include Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Ports1
ConnectorLC Duplex
Network Speed1.25 Gbps
1000BASE-LXLC ConnectorHot-swappableDDM Support

Key Product Advantages

This SFP transceiver combines certified compatibility with HPE equipment, versatile fiber support, and robust monitoring features in a compact, reliable package. Its lifetime warranty and technical support provide long-term value and peace of mind for network deployments.

Verified HPE Compatibility

Extensively tested to work flawlessly with HPE 1400, 1700, 1820, 2520, and 2530 series switches and routers, ensuring reliable performance without voiding OEM warranties.

Dual Fiber Mode Support

Operates with both single-mode and multi-mode fiber cables, offering deployment flexibility across different network infrastructure types and distances.

Comprehensive Diagnostic Monitoring

Digital Diagnostic Monitoring provides real-time performance data accessible through SNMP tools, enabling proactive network management and troubleshooting.

Deployment / Use Cases

The J4859CST SFP transceiver is ideal for expanding or upgrading fiber optic network segments in various environments. Its 10-kilometer reach makes it suitable for connecting buildings across campuses, linking data center racks, or extending network backbones in enterprise settings.

Common deployment scenarios include integrating with HPE switch stacks for unified management, connecting to MSA-compliant switches from vendors like Ubiquiti, D-Link, or Netgear in mixed-vendor environments, and implementing fiber uplinks in network closets or distribution layers. The hot-swappable design allows for easy installation and replacement during network maintenance windows.

Campus Network Extension

Connect multiple buildings across a campus using single-mode fiber for distances up to 10 km, maintaining high-speed Gigabit Ethernet connectivity between network segments.

Data Center Interconnect

Establish reliable fiber links between server racks or data center zones, leveraging the transceiver's compatibility with enterprise-grade switching equipment and diagnostic capabilities.

Physical Profile

The compact SFP form factor measures 0.50" (12.70 mm) in height, 0.60" (15.24 mm) in width, and 2.20" (55.88 mm) in depth, with a lightweight design at approximately 0.60 oz (17.01 g). This small footprint allows high-density installation in switch ports without obstructing adjacent modules or airflow. The hot-pluggable interface enables installation and removal without powering down networking equipment, supporting efficient network maintenance and upgrades.

Dimensions
Width
0.60" (15.24 mm)
Depth
2.20" (55.88 mm)
Height
0.50" (12.70 mm)
Weight
0.60 oz (17.01 g)
[custom-highlights]

Highlights

  • 100% compatible with HPE J4859C and tested with HPE 1400, 1700, 1820, 2520, 2530 series switches
  • 1000BASE-LX Gigabit Ethernet SFP transceiver supporting 1.25 Gbps speeds
  • Works with both single-mode and multi-mode fiber cables using LC duplex connector
  • Supports distances up to 10 km (6.2 miles) for extended network runs
  • Hot-swappable, hot-pluggable design for easy installation and maintenance
  • Digital Diagnostic Monitoring (DDM) for real-time performance tracking via SNMP
  • MSA compliant for broad compatibility with switches from Ubiquiti, D-Link, Netgear, and more
  • Lifetime warranty on the transceiver module with technical support available
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerStarTech.com
Manufacturer Part NumberJ4859CST
Brand NameStarTech.com
Product NameHP J4859C Compatible SFP Transceiver Module - 1000BASE-LX
Product TypeSFP (mini-GBIC)
Packaged Quantity1 Each
Technical Information
Application/UsageOptical Network,Data Networking
Interfaces/Ports
Total Number of Ports1
Connector TypeLC
Interfaces/Ports Details1 x LC Duplex 1000Base-LX Network
Media & Performance
Media Type SupportedOptical Fiber
Fiber Mode SupportedMulti-mode,Single-mode
Ethernet Technology1.25 Gigabit Ethernet
Network Technology1000Base-LX
Physical Characteristics
Form FactorHot-pluggable,Hot-swappable
Height0.50" (12.70 mm)
Width0.60" (15.24 mm)
Depth2.20" (55.88 mm)
Weight (Approximate)0.60 oz (17.01 g)
Miscellaneous
CompatibilityMSA Compliant HPE Routers HPE Switches: 1400 1700 1820 2520 2530
Country of OriginChina
Environmentally FriendlyYes
Warranty
Limited WarrantyLifetime
[/custom-specifications][custom-user-manual]

User Manual

This section contains official documentation provided by the manufacturer, including product manuals, brochures, and supplementary materials.
[/custom-user-manual][custom-faq]

FAQ

What HPE switch models is this SFP transceiver compatible with?

This StarTech.com J4859CST transceiver is 100% compatible with HPE J4859C and has been tested with HPE 1400, 1700, 1820, 2520, and 2530 series switches and routers. It works seamlessly with these models without voiding OEM warranties, providing a reliable fiber optic connection for Gigabit Ethernet networks.

Does this SFP module support both single-mode and multi-mode fiber?

Yes, the transceiver supports both single-mode and multi-mode fiber cables. It uses an LC duplex connector and operates at 1310nm wavelength, making it versatile for different network infrastructure types. This dual-mode support allows deployment flexibility across various distances and cable installations.

What is the maximum distance this transceiver can achieve?

The J4859CST SFP transceiver supports distances up to 10 kilometers (approximately 6.2 miles) over fiber optic cable. This extended reach makes it suitable for connecting network segments across buildings, campuses, or data center environments while maintaining Gigabit Ethernet performance.

What is Digital Diagnostic Monitoring (DDM) and how does it work?

Digital Diagnostic Monitoring is a feature that provides real-time performance data about the transceiver's operation. It monitors parameters like temperature, voltage, laser bias current, and optical power, reporting this information to SNMP-based network management tools. This enables proactive maintenance, troubleshooting, and performance optimization without physical inspection.

Is this SFP module hot-swappable?

Yes, the transceiver features a hot-pluggable, hot-swappable design. This allows you to install or remove the module without powering down the networking equipment, minimizing network downtime during maintenance, upgrades, or replacements. It ensures seamless integration into live network environments.

What warranty does this SFP transceiver come with?

StarTech.com provides a lifetime warranty on the J4859CST SFP transceiver module. This warranty covers the life of the module itself and is backed by technical support available through their advisory team. The module is designed not to void OEM warranties on compatible networking equipment.

[/custom-faq]
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StarTech. com J4859CST HPE J4859C Compatible SFP Transceiver - 1000BASE-LX 1GbE Fiber Module - LC Connector - Single/Multi Mode - 10km Distance
MSRP: $78.91
$78.95
$74.95
Save: $3.96 (5.02%)
Available & Ready to Ship