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JC876A-C
1G SFP LC SX MM 550m 850nm HP X126 Compatible
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JC876A-C is a high-performance SFP+ transceiver engineered for 10G Ethernet networks. It features an LC connector, supports a 10G data rate, and is optimized for short-range transmission, making it ideal for data centers, enterprise networks, and telecom applications while efficiently handling both Ethernet and Fibre Channel protocols.
JC876A-C is built in a compact form factor with precise physical dimensions to ensure seamless integration in high-density deployments. Its design emphasizes reliability and compatibility with leading network vendors, providing an ideal solution for modern network infrastructures that demand robust performance and efficient power management.
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| JC876A-C |  J4859D-C |  J4860B-C |  J4860A-C |  J4859B-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP+ | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1310 nm | 850 nm | 850 nm | 1310nm | 1310 nm |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Multi-mode | Multi-mode | Single-mode | Single-mode |
| Max Distance | 10 km | 300 meters | 300 meters | 10 km | 10 km |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet | Ethernet |
| Network Interface | Ethernet | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 3.5 W | 2.5W | 2.5W | N/A | 3.5 W |
| 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 | JC876A-C 10G SFP+ Transceiver | J4859D-C 10G SFP+ Transceiver | J4860B-C 10G SFP+ Transceiver Module | J4860A-C 10G SFP+ Optical Transceiver | J4859B-C 10G SFP+ Transceiver Module |
| Height | 0.5 inches | 0.62 inches | 0.25 inches | N/A | 0.65 inches |
| Width | 0.9 inches | 0.55 inches | 0.70 inches | N/A | 0.65 inches |
| Depth | 1.2 inches | 3.30 inches | 0.85 inches | N/A | 1.50 inches |
| Weight | 0.2 lbs | 0.09 lbs | 0.1 lbs | N/A | 0.10 lbs |
Exceptional SX performance for HP X126 systems. Solid 550m reach over multi-mode fiber. Recognized instantly with zero configuration headaches.
High-quality 850nm signaling. These modules are robust and provide a clean 1G link for our server uplinks. Very satisfied.
Perfect compatibility with our HP hardware. No packet loss or latency detected. A dependable and professional optical solution for our team.
Consistent 1Gbps throughput. The build quality is excellent, ensuring a stable connection for our core switch environment. Five stars.
Great value and rock-solid reliability. These SX modules offer identical performance to the original HP X126 optics. Highly recommended.
Steady and dependable fiber connectivity. The switch identifies it correctly every time. A trustworthy alternative for our enterprise network.
The JC876A-C is a 1 Gigabit Small Form-Factor Pluggable (SFP) multimode fiber transceiver designed for HP X12600-series switches. It supports LC duplex connections, operates at 850 nm, and delivers up to 550 m reach over OM2/OM3 fiber.
This transceiver reliably supports a data rate of 1.25 Gbps (Gigabit Ethernet), ensuring full duplex performance and backward compatibility with lower speeds.
The JC876A-C is optimized for multimode fiber (MMF) – specifically OM1, OM2, OM3 and OM4 – providing maximum flexibility in short-reach applications.
It features an LC duplex connector interface for secure, standardized fiber coupling in high-density port environments.
The module transmits at 850 nm, the industry standard for short-reach multimode applications, ensuring optimal performance and low dispersion.
This transceiver supports a maximum reach of up to 550 meters on OM2 multimode fiber and extends beyond on OM3/OM4, making it ideal for campus and data-center links.
It is fully compatible with HP X12600, X12500, X12400, and related HPE ProCurve and HP Aruba series equipped with SFP slots.
Yes. The JC876A-C supports hot-swapping, allowing insertion or removal without powering down the host device.
Yes. It meets IEEE 802.3z (1000BASE-SX) and SFF-8472 specifications for diagnostic monitoring and interoperability.
While optimized for HP, the JC876A-C often works in other brands supporting standard 1000BASE-SX SFP—but always verify OEM compatibility or disable vendor checks.
The module operates reliably between 0 °C and +70 °C (32 °F to 158 °F), suitable for standard data-center and office environments.
Yes. It is fully RoHS-compliant, free of lead, mercury, cadmium, and other restricted substances.
We offer a lifetime warranty covering defects in materials and workmanship, along with free technical support and replacement services.
Insert the module into an available SFP slot until it clicks, connect LC fiber cables, then verify link status via your switch’s LED indicators or management console.
Absolutely. Its 850 nm operation and 550 m reach make it ideal for upgrading legacy 100 Mbps links to Gigabit Ethernet over existing multimode infrastructure.
Verify fiber type and cleanliness, check LC connector seating, confirm switch port configuration (speed/duplex), and use diagnostic monitoring (DOM) to inspect optical power levels.
It features a typical transmit power of –9.5 dBm and a receive sensitivity of –17 dBm, delivering a power budget of ~7.5 dB for reliable 550 m links.
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