United States$5,000,000+
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G
Gareth Nolan
5
LH transceiver handled long distance links reliably.
J4860C
HP X121 1G SFP LC LH Transceiver
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J4860C
- Description:
- HP X121 1G SFP LC LH Transceiver
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J4860C Overview
J4860C is a QSFP transceiver module engineered for 100G Ethernet applications. It features LC connectors and is designed for short‐range transmission over multi-mode fiber, supporting both Ethernet and Fibre Channel protocols in a compact QSFP form factor ideal for high-density installations.
Optimized for high-speed data connectivity in data centers, enterprise networks, and telecom environments, the J4860C QSFP28 100G Transceiver Module offers precise physical dimensions and robust performance. Its design meets industry-standard requirements for reliable operation and seamless integration into advanced network infrastructures.
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J4860C Specifications
- Product Type
- Transceiver
- Form Factor
- QSFP
- Data Rate
- 100G
- Connector Type
- LC
- Wavelength
- 850nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 100 meters
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Ethernet
- Power Consumption
- 8W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- J4860C QSFP28 100G Transceiver Module
- Height
- 0.65 inches
- Width
- 0.8 inches
- Depth
- 2.0 inches
- Weight
- 0.2 lbs
J4860C Use Case
Campus Backbone Extension with 1G SFP LC LH Transceiver
In a multi-building university network, the J4860C-HP X121 1G SFP LC LH Transceiver provides a seamless 10 km link over single-mode fiber. This solution delivers low-latency, high-availability connectivity across departments, reduces fiber infrastructure costs, and ensures campus-wide network consistency for research, administration, and digital learning platforms.
High-Availability Data Center Uplink Deployment
For enterprise data centers requiring redundant uplinks, the J4860C-HP X121 1G SFP LC LH Transceiver integrates with HP switches to deliver hot-swappable, plug-and-play fiber connectivity. IT teams achieve simplified maintenance, zero downtime during upgrades, and enterprise-grade signal integrity, ensuring uninterrupted service delivery and optimal network performance.
Remote SCADA and Industrial Automation Networking
In utility substations and remote industrial sites, the J4860C-HP X121 1G SFP LC LH Transceiver provides EMI-immune, long-reach fiber connections up to 10 km. This robust transceiver supports mission-critical SCADA systems and real-time process control, enhancing operational reliability, reducing electromagnetic interference risks, and securing vital data transmission in harsh environments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| J4860C |  JW091A |  455886-B21 |  QW929A |  J8438A | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | SFP+ | SFP+ | SFP+ | SFP+ |
| Data Rate | 100G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850nm | 850 nm | 850nm | 850 nm | 850 nm |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Multi-mode | Multi-mode |
| Max Distance | 100 meters | 300 meters | 300 meters | 300 meters | 300 meters |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, Fiber Channel | 10G Ethernet | Ethernet, Fibre Channel | Ethernet |
| Network Interface | Ethernet | Fiber | Ethernet | Ethernet | Fiber |
| Power Consumption | 8W | 2.5W | 3.5W | 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 | J4860C QSFP28 100G Transceiver Module | JW091A 10G SFP+ Transceiver | 455886-B21 10G SFP+ LC Transceiver Module | QW929A High Performance SFP+ Optical Transceiver Module | J8438A 10G SFP+ Transceiver |
| Height | 0.65 inches | 0.13 inches | 0.65 inches | 0.33 inches | 0.3 inches |
| Width | 0.8 inches | 0.79 inches | 0.55 inches | 0.78 inches | 0.6 inches |
| Depth | 2.0 inches | 3.56 inches | 0.36 inches | 1.2 inches | 1.6 inches |
| Weight | 0.2 lbs | 0.18 lbs | 0.1 lbs | 0.05 lbs | 0.2 lbs |
Reviews & Ratings
S
Sami Ullah
5
Good optical power and stable performance.
V
Victor Rios
5
Recognized immediately by switches.
J
Jens Petersen
5
Solid choice for extended fiber runs.
L
Luke Turner
5
Met deployment needs.
Questions & Answers
What is the HP X121 1G SFP LC LH Transceiver (SKU: J4860C)?
The HP X121 1G SFP LC LH Transceiver (J4860C) is a hot-pluggable optical module designed for 1 Gigabit Ethernet connections over single-mode fiber with an LC duplex interface and a link length up to 10 km.
Which HP switches are compatible with the J4860C transceiver?
The J4860C transceiver is fully compatible with HP ProCurve, Aruba and HPE FlexNetwork switches featuring SFP ports supporting 1000BASE-LX/LH modules.
What optical fiber type and connector does the J4860C use?
It uses single-mode fiber (SMF) with an LC duplex connector interface to ensure low-loss, high-speed data transmission.
What is the maximum cable distance supported by the HP X121 1G SFP LC LH Transceiver?
The transceiver supports link lengths of up to 10 kilometers over single-mode fiber at 1 Gbps.
Is the J4860C module hot-swappable?
Yes, the HP X121 1G SFP LC LH Transceiver is hot-pluggable, allowing you to insert or remove it without powering down the host device.
What data rate does the HP X121 support?
The module supports a data rate of 1 Gbps (1000BASE-LX/LH) on single-mode fiber.
How do I install the HP X121 1G SFP LC LH Transceiver?
Simply insert the transceiver into an empty SFP port until it clicks, connect your LC fiber cable, and verify link status via your switch’s management interface.
Does the J4860C support Digital Optical Monitoring (DOM)?
Yes, this transceiver supports DOM for real-time monitoring of optical output power, input power, temperature, voltage and laser bias current.
What environmental conditions does the HP X121 require?
Operating temperature ranges from 0°C to 70°C, with relative humidity of 5% to 85% (non-condensing) for reliable performance.
What warranty does the J4860C transceiver come with?
The HP X121 transceiver includes a one-year limited warranty backed by HPE support; extended warranties are available through HPE Care Pack services.
Can I mix third-party fiber transceivers with HP switches?
For guaranteed interoperability and support, HP recommends using certified HP transceivers like the J4860C; third-party modules may void support and warranty.
How can I verify the specification of my installed J4860C transceiver?
Use your switch’s CLI or GUI commands (e.g., show transceiver details) to display vendor, part number and DOM readings for confirmation.
What is the typical power consumption of the HP X121 1G SFP LC LH?
The module consumes less than 1W of power, ensuring energy-efficient operation within HP network switches.
Where can I purchase the HP X121 1G SFP LC LH Transceiver (J4860C)?
You can buy the transceiver through authorized HPE resellers, the HPE online store or certified IT distributors for genuine product assurance.
How does the HP X121 differ from 1000BASE-SX SFP transceivers?
Unlike 1000BASE-SX modules that use multimode fiber up to 550m, the X121 operates on single-mode fiber for distances up to 10 km.
Can the J4860C be used in DWDM or CWDM networks?
No, the HP X121 is a standard 1000BASE-LX/LH transceiver and is not wavelength-tuned for DWDM or CWDM applications.