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HP® J4858B Compatible TAA 1000Base-SX SFP Transceiver (MMF, 850nm, 550m, LC, DOM)
- With 1000Base-SX technology, enjoy up to 1000Mbps data transfer rate over optical fiber cable
- Gigabit Ethernet port for ultra-fast network speeds
- Optical Fiber media support ensures maximum convenience and great usability
- Typically used for short distance, multi-mode fiber optic is ideal to carry data and transmit audio/video applications within a building
- SFP (mini-GBIC) is the single answer to all your desired and specified application execution needs
- SFP (mini-GBIC) with data networking application/usage for reliability and maximum efficiency
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Overview
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AddOn HP J4858B Compatible TAA Compliant 1000Base-SX SFP Transceiver (MMF, 850nm
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): Lifetime
- Limited Warranty period (labor): Lifetime
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-877-292-1701
- Support Email: tech_support@addoncomputer.com
- Support Website
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The AddOn J4858B-AO is an HP J4858B-compatible 1Gbps 1000Base-SX SFP transceiver for network teams connecting switches or other compatible equipment over multimode fiber, with an LC connector and reach up to 550m at 850nm.
Recommended For
- Network administrators adding a 1-Gigabit fiber uplink between HP/ProCurve switches, when the switch model and firmware support this compatible SFP.
- IT teams connecting switches or network equipment in the same building over existing multimode fiber with LC connectors, for links within the product’s listed 550-meter reach.
- Organizations maintaining HP ProCurve installations that need a 1-Gigabit, 1000BASE-SX replacement module and can verify the compatible SFP against their specific switch.
- Procurement teams sourcing a compatible SFP for a project that calls for a TAA-listed product; confirm that the listing and vendor documentation meet the project’s specific requirements.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Short-reach Gigabit Ethernet links over multimode fiber, including connections within a building |
| Network Standard And Speed | Ethernet transceiver supporting TCP/IP and 1000Base-SX at 1 Gbps |
| Optical Interface And Reach | SFP form factor with one LC connection for multimode fiber, 850 nm wavelength, 550 m reach, and DOM |
| Operating Environment | Operating temperature range of 0–70 °C |
| Model Identifiers | AddOn J4858B-AO; compatible with HP® OEM part J4858B |


