StarTech.com 10 Pack HPE J4858C Compatible SFP Module - 1000BASE-SX MMF Transceiver 550m

Designed to empower modern enterprise networks, the StarTech.com 10 Pack HPE J4858C Compatible SFP Module delivers reliable, scalable 1 Gigabit Ethernet connectivity over multimode fiber. This ten-pack of SFP transceivers is engineered for seamless interoperability with HPE devices bearing the J4858C reference, while maintaining broad compatibility across a wide range of switches, routers, and servers that support 1000BASE-SX. Whether you are upgrading data center uplinks, refreshing failed links, or stocking backup modules for high-availability deployments, these SFP transceivers offer a cost-effective, low-risk path to boosting bandwidth and network resilience. Each module supports short- to medium-range MMF links (up to 550 meters) on an 850 nm optical wavelength, making them ideal for campus networks, server rooms, and edge data centers. The 10-pack format helps IT teams reduce downtime due to transceiver failures and simplifies asset management by standardizing hardware across multiple racks. Built to StarTech.com’s exacting quality standards, the modules are designed to deliver consistent performance, robust signal integrity, and long service life even in demanding environments. With strong compatibility assurance for HPE J4858C and a proven track record of interoperability, these SFP modules let you deploy reliable 1GbE connectivity with confidence while avoiding vendor lock-in and minimizing maintenance overhead.

• Compatibility and interoperability: These SFP transceivers are crafted to work with HPE systems that use the J4858C reference and are tested for broad interoperability across a wide ecosystem of switches, routers, and servers that support 1000BASE-SX. This means you can mix StarTech.com modules with a variety of vendor equipment without sacrificing performance or reliability. The result is flexible deployment options, streamlined inventory, and reduced risk of compatibility gaps in multi-vendor networks. Each module adheres to industry-standard SFP specifications, ensuring smooth plug‑and‑play installation in compatible SFP slots.
• Performance and range: At the core, these transceivers deliver 1 Gbps full-duplex Ethernet over multimode fiber (MMF) with an 850 nm wavelength. They are engineered for reliable operation over short to medium distances, up to 550 meters on standard MMF cabling. The combination of 850 nm optics and MMF compatibility gives you cost-effective, high-bandwidth connectivity suitable for data center racks, distribution closets, and campus links. The transceivers are designed to maximize signal integrity with tight tolerances for loss budgets, helping to maintain low bit-error rates and stable throughput even in busy networks.
• Reliability and build: The modules feature rugged, compact SFP form factors with solid metal housings that withstand the rigors of dense equipment racks and hot-swapped deployments. Built for 24/7 operation in enterprise environments, they offer dependable long-term service life and consistent performance across the entire ten-pack. Clear status indicators on compatible switches and routers help you quickly verify link health, while design choices that minimize insertion loss and polarization sensitivity contribute to reducing link instability in challenging fiber runs.
• Value and convenience: A 10-pack is ideal for large IT projects, data-center refresh cycles, and network expansions where multiple ports or uplinks require identical transceivers. Buying in bulk simplifies procurement, reduces stocking costs, and ensures uniform performance across all in-field links. StarTech.com backs these modules with its quality assurance processes, providing confidence in performance consistency and compatibility across the multi-vendor network environments that modern IT teams manage.
• Ease of use and installation: These SFP modules are designed for straightforward, tool-free installation. Simply insert into an SFP slot until it seats with a click, connect the LC duplex multimode fiber patch cord, and power up the connected device. No complicated reconfiguration is typically required; compatibility with standard 1000BASE-SX configurations means most switches automatically recognize the link and negotiate parameters. This plug-and-play capability helps minimize downtime during upgrades or replacements and supports rapid scale-out of network infrastructure.

Technical Details of StarTech.com 10 Pack HPE J4858C Compatible SFP Module

• Product type: SFP Transceiver Module
• Interface: 1000BASE-SX
• Fiber type: Multi-Mode Fiber (MMF)
• Wavelength: 850 nm
• Distance (MMF): Up to 550 meters
• Data rate: 1 Gbps (Gigabit Ethernet)
• Connector: LC duplex
• Form factor: SFP
• Compatibility: HPE J4858C; tested with StarTech.com and multiple vendor ecosystems for reliable interoperability
• Packaging: 10-pack
• Key benefits: Low insertion loss, robust signal integrity, and plug-and-play compatibility with common enterprise network gear

How to install StarTech.com 10 Pack HPE J4858C Compatible SFP Module

• Power down or follow the maintenance procedures required by your network equipment before installation to prevent EMI or hot-swapping issues.
• Locate an available SFP slot in your switch, router, or network appliance, and remove any protective caps from the slot and the SFP module.
• Insert the StarTech.com SFP module into the SFP slot until it seats with a clear click. Ensure the connector faces the correct orientation and remains firmly seated.
• Connect a suitable LC duplex multimode fiber patch cord to the LC ports on the SFP and the corresponding fiber port on the network device. Align polarity and gently seat the fiber connectors.
• Secure any required cable management to avoid strain on the connectors, then reapply power to the device and monitor the link status indicators on the device’s front panel or management interface.
• Configure the switch port for the appropriate speed and duplex settings if necessary; in most cases, auto-negotiation will select 1 Gbps with full duplex. Verify connectivity with network tests such as ping, traceroute, or throughput tests to confirm link integrity and performance.

Frequently asked questions

• Q: Are these SFP modules compatible with HPE devices that use the J4858C reference?
• A: Yes. The StarTech.com 10 Pack is specifically marketed as HPE J4858C compatible and is designed to provide reliable interoperability with devices that use that specification, while also functioning with many other vendors' hardware that supports 1000BASE-SX.
• Q: What is the maximum link distance for these transceivers?
• A: The modules support up to 550 meters on multimode fiber, depending on the fiber type, patch cord quality, and network equipment, making them well-suited for data centers and campus networks with shorter to mid-range links.
• Q: Do I need to configure my switch to use 1 Gbps when installing these?
• A: In most cases, auto-negotiation will select 1 Gbps full duplex. If your network environment requires a fixed speed, you can manually configure the port to 1 Gbps on the switch or router management interface.
• Q: Can I mix these transceivers with other vendors’ SFPs?
• A: They are designed for broad interoperability and are tested to work with many vendors. However, interoperability can depend on firmware versions and specific hardware models, so it’s advisable to verify compatibility in your environment or perform a small-scale test before full deployment.