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J4858C-C
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Gigabit-SX-LC Mini-GBIC C Ver. HP X121 Compatible
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Name:
J4858C-C
- Description:
- Gigabit-SX-LC Mini-GBIC C Ver. HP X121 Compatible
- Rating:
Added to cart 28 times recently
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2 In stock - Ready to Ship
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J4858C-C Overview
J4858C-C is a 10G SFP+ transceiver module featuring LC connectors designed for short-range optical transmission over multi-mode fiber. It supports a 10G data rate and complies with Ethernet protocol standards while offering a compact form factor with precise physical dimensions for seamless integration in high-performance network environments.
Engineered primarily for data centers, enterprise networks, and telecom applications, this module ensures reliable interconnects and robust performance with established compatibility across leading platforms such as Cisco, Juniper, Huawei, and Arista. Its design meets industry requirements for efficient data transmission, making it an ideal choice for modern network infrastructures.
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J4858C-C Specifications
- Product Type
- Transceiver
- Brand
- Orm
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 300 meters
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 3.5 W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- J4858C-C 10G SFP+ Transceiver
- Height
- 0.33 inches
- Width
- 2.17 inches
- Depth
- 0.5 inches
- Weight
- 0.06 lbs
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Product Comparison Table 
| J4858C-C |  J8177C-C |  J4858D-C |  J8177D-C |  J9143B-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | QSFP28 | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 100G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850 nm | 1310 nm | 850nm | 850nm | 850nm |
| Transmission Distance | Short-Range | Extended-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Single-mode | Multi-mode | Multi-mode | Multi-mode |
| Max Distance | 300 meters | 10 km | 300 meters | 300 meters | 300 meters |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet, Fiber Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Power Consumption | 3.5 W | 3.5W | 1.5W | 3.5W | 3.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | J4858C-C 10G SFP+ Transceiver | J8177C-C 100G QSFP28 Transceiver | J4858D-C | J8177D-C 10G SFP+ Optical Transceiver | J9143B-C 10G SFP+ Transceiver Module |
| Height | 0.33 inches | 0.67 inches | 0.25 inches | 0.28 inches | 0.66 inches |
| Width | 2.17 inches | 0.44 inches | 0.65 inches | 0.87 inches | 0.87 inches |
| Depth | 0.5 inches | 0.66 inches | 0.5 inches | 1.1 inches | 2.0 inches |
| Weight | 0.06 lbs | 0.1 lbs | 0.05 lbs | 0.05 lbs | 0.07 lbs |
Compliance & Warranty
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Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
T
Thetis Cole
4
Excellent C-version SX module. Perfectly compatible with our HP X121 requirements. Solid gigabit speeds over multi-mode fiber with zero errors.
U
Urban Burke
5
Reliable short-reach fiber connectivity. Recognized instantly by our newer HP switches. High build quality and professional performance for our uplinks.
V
Vesper Finn
5
No issues at all. These SX transceivers provide a clean signal and are a perfect fit for our 1GbE network infrastructure.
W
Winston Gable
4
Great price and solid reliability. These modules offer identical performance to the original HP X121 optics. Highly recommended for enterprise use.
D
Donal Reed
5
Consistent 1Gbps throughput. The hardware is robust and handles daily traffic loads without any performance degradation. Very satisfied with the compatibility.
S
Silas Quinn
4
Perfectly recognized by our Procurve gear. These SX modules are a cost-effective way to scale our fiber network without sacrificing quality.
Questions & Answers
What is the J4858C-C Gigabit-SX-LC Mini-GBIC C Ver. HP X121 Compatible module?
The J4858C-C is a Gigabit SX SFP transceiver module compatible with HP X121 switches, designed for multi-mode fiber applications up to 550 meters at 850 nm wavelength.
Which HP devices are compatible with the J4858C-C module?
The J4858C-C module is fully compatible with HP X121 series switches and any HP switch or router supporting SX SFP ports under the HP MSA firmware profile.
What data rate does the Gigabit-SX-LC Mini-GBIC support?
This module supports a data rate of up to 1.25 Gbps, meeting IEEE 802.3z Gigabit Ethernet specifications for high-speed network links.
What type of fiber does the J4858C-C require?
The transceiver uses 50/125 µm or 62.5/125 µm multi-mode fiber (MMF) to achieve optimal performance at distances up to 550 meters.
What connector interface does this SFP module use?
The J4858C-C features dual LC duplex connectors, providing reliable and standardized fiber connections for Gigabit Ethernet links.
What wavelength and reach does the module offer?
Operating at an 850 nm wavelength, the module supports link distances of up to 550 meters over multi-mode fiber, ideal for enterprise and campus networks.
Is the J4858C-C hot-swappable?
Yes, the module is fully hot-swappable, allowing you to install or replace it without powering down the host device, minimizing network downtime.
Is this transceiver compliant with industry standards?
The J4858C-C is MSA-compliant and adheres to IEEE 802.3z and SFP Multi-Source Agreement (MSA) standards for maximum interoperability and reliability.
How do I install the J4858C-C module?
Simply insert the module into the SFP port until it clicks, connect your LC fiber patch cord, and verify link status via your switch’s LED indicator or management interface.
Does this module support Digital Diagnostics Monitoring (DDM)?
Yes, the J4858C-C integrates DDM (DOM) features, enabling real-time monitoring of parameters such as optical power, temperature, and supply voltage.
What operating temperature range does the J4858C-C support?
The module operates reliably between 0 °C to 70 °C (32 °F to 158 °F), making it suitable for standard data center and enterprise environments.
What is the power consumption of the Gigabit-SX-LC Mini-GBIC?
The J4858C-C consumes less than 1 W of power, ensuring energy-efficient operation without compromising performance.
What warranty is provided with the J4858C-C transceiver?
This module includes a limited lifetime warranty covering manufacturing defects and failures under normal operating conditions.
Can I use the J4858C-C in a mixed-vendor network environment?
Yes, the MSA compliance and IEEE 802.3z certification ensure interoperability with SFP ports from Cisco, Juniper, Dell, and other major vendors.
How can I troubleshoot a link failure when using this module?
First, verify proper fiber polarity and LC connections, check DDM readings for optical levels, and confirm the host port configuration matches the module’s specifications.
Where can I purchase the J4858C-C module and access support?
You can order the J4858C-C through authorized HP resellers or online distributors. Technical support is available via the reseller’s helpdesk or HP support portal.