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J4859B-C
Gigabit-LX-LC Mini-GBIC B Ver. HP Procurve Compatible
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Overview of “J4859B-C”: J4859B-C is an SFP+ transceiver module that supports a 10G data rate for Ethernet applications using LC connectors. Designed for long-range communication over single-mode fiber up to 10 km, it features a compact form factor with dimensions optimized for data centers, enterprise networks, and telecom environments.
J4859B-C delivers reliable performance in high-speed data and telecom applications, offering precise power efficiency and robust support for Ethernet protocols. The module’s industry-standard design ensures broad compatibility with leading network equipment providers such as Cisco, Juniper, Huawei, and Arista.
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Request bulk order quote for J4859B-C for additional pricing. Browse the full Hpe Compatible Sfp series or explore all Orm products.
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| J4859B-C |  C8S75A-1P-C |  JC876A-C |  J4859D-C |  J8177D-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 1G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1310 nm | 1310 nm | 1310 nm | 850 nm | 850nm |
| Transmission Distance | Long-Range | Long-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Multi-mode | Multi-mode |
| Max Distance | 10 km | 10 km | 10 km | 300 meters | 300 meters |
| Supported Protocols | Ethernet | Ethernet | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet |
| Network Interface | Fiber | Fiber | Ethernet | Fiber | Fiber |
| Power Consumption | 3.5 W | 1.2 W | 3.5 W | 2.5W | 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 | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | J4859B-C 10G SFP+ Transceiver Module | C8S75A-1P-C | JC876A-C 10G SFP+ Transceiver | J4859D-C 10G SFP+ Transceiver | J8177D-C 10G SFP+ Optical Transceiver |
| Height | 0.65 inches | 0.65 inches | 0.5 inches | 0.62 inches | 0.28 inches |
| Width | 0.65 inches | 0.81 inches | 0.9 inches | 0.55 inches | 0.87 inches |
| Depth | 1.50 inches | 1.95 inches | 1.2 inches | 3.30 inches | 1.1 inches |
| Weight | 0.10 lbs | 0.1 lbs | 0.2 lbs | 0.09 lbs | 0.05 lbs |
Excellent LX signaling for our B-version HP switches. The 10km reach is perfect for our campus single-mode fiber rings. Very stable.
Reliable performance on long fiber runs. Recognized instantly by the Procurve CLI. A professional and cost-effective solution for our networking needs.
Solid build quality and impressive signal margins. These LX modules have been rock-solid in our production environment. Five stars for compatibility.
Perfect integration with our existing hardware. No 'unsupported hardware' warnings. The data transport is consistent and reliable across all our sites.
High-quality single-mode optics. They provide exactly the reach and stability required for our inter-building uplinks. Very satisfied with the results.
Steady and dependable. These modules offer the same technical specs as the HP originals at a much better price point. Great investment.
The J4859B-C is a Gigabit-LX-LC Mini-GBIC fiber transceiver supporting 1000Base-LX on single-mode fiber up to 10 km, fully compatible with HP ProCurve switches.
This Mini-GBIC is validated on HP ProCurve series including 2610, 2810, 2910, 3500yl, 3600, 5400zl and 8200 chassis.
It is an LC duplex 1000Base-LX SFP module, single-mode fiber, 1310 nm wavelength, up to 10 km reach, operating temperature 0–70 °C, power ≤0.8 W.
Power on the switch, align and insert the module into an empty SFP port until it clicks, then connect your LC single-mode fiber cable.
Yes. You can insert or remove the transceiver without powering down the switch, provided the network topology supports hot-swap.
Use single-mode fiber cable terminated with LC connectors for optimal performance at 1310 nm over distances up to 10 km.
While optimized for HP ProCurve, it may function on other vendors’ SFP-compatible switches, though interoperability isn’t guaranteed.
Consult your switch’s SFP compatibility matrix or HP ProCurve documentation to confirm support for the J4859B-C module.
This Mini-GBIC is backed by a one-year limited warranty against manufacturing defects.
1000Base-LX uses a 1310 nm laser for up to 10 km on single-mode fiber, while 1000Base-SX uses 850 nm on multimode fiber for up to 550 m.
The module operates reliably between 0 °C and 70 °C (32 °F to 158 °F).
Verify the Link/Act LED on the switch port turns solid or blinks with traffic, indicating a successful fiber connection.
No. The J4859B-C is designed for standard 1000Base-LX and is not compatible with CWDM or DWDM wavelength grids.
The J4859B-C consumes ≤0.8 W during normal operation.
You can install up to as many modules as available SFP slots permit, typically up to 24 in fixed-port switches or as defined by chassis capacity.
Check fiber polarity and cleanliness, ensure matched wavelength modules, inspect switch logs for errors, and confirm the SFP port configuration.