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JG661A-LR4L-C
40G QSFP+ LC LR4L SM 2KM Transceiver HP X140 Compatible
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
JG661A-LR4L-C is a high-performance SFP optical transceiver engineered for 10G Ethernet applications. Designed with an LC connector and optimized for long-range data transmission, this module meets the stringent requirements of modern data centers, enterprise networks, and telecom infrastructures.
Manufactured in a compact SFP form factor with standardized physical dimensions, JG661A-LR4L-C supports robust Ethernet protocols while delivering reliable connectivity over extended distances. Its single-mode fiber compatibility and precise engineering ensure low latency and high signal integrity, making it a trusted choice for mission-critical network deployments.
JG661A-LR4L-C price is is available on request. Get immediate quote.
Request bulk order quote for JG661A-LR4L-C for additional pricing. Browse the full Hpe Compatible Qsfp+ series or explore all Orm products.
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| JG661A-LR4L-C |  JC858A-C |  E7Y33A-C |  JH891A-C |  JH890A-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP+ | SFP+ | SFP+ | QSFP28 |
| Data Rate | 10G | 10G | 10G | 10G | 100G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1310 nm | 850 nm | 850nm | 1310 nm | 850nm |
| Transmission Distance | Long-Range | Short-Range | Short-Range | Long-Range | Short-Range |
| Fiber Type | Single-mode | Multi-mode | Multi-mode | Single-mode | Multi-mode |
| Max Distance | 10 km | 300 meters | 300 meters | 10 km | 100 meters |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 3.5W | 2.5 W | 3.5W | 1.5W | 15W |
| 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 | JG661A-LR4L-C 10G SFP Optical Transceiver | JC858A-C SFP+ Transceiver Module | E7Y33A-C 10G SFP+ SR Transceiver | JH891A-C | JH890A-C |
| Height | 0.28 inches | 0.87 inches | 0.65 inches | 0.3 inches | 0.62 inches |
| Width | 0.55 inches | 0.45 inches | 0.8 inches | 0.5 inches | 0.88 inches |
| Depth | 2.2 inches | 0.35 inches | 1.8 inches | 1.2 inches | 1.00 inches |
| Weight | 0.1 lbs | 0.05 lbs | 0.1 lbs | 0.04 lbs | 0.25 lbs |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Perfect 2km LR4L solution. Cost-effective and reliable for intra-building 40G links. Solid.
Recognized instantly. Stable 40Gbps performance over 2km SM fiber. Highly recommended hardware.
Excellent build quality. These LR4L transceivers offer clear signaling and easy installation.
Consistent throughput. No configuration issues. Perfect for 40G links up to 2km.
Reliable 40G LR4L. Professional grade optics for high-density switching environments. Very happy.
Outstanding value. Performance is rock-solid for our 2km server cluster interconnects. Recommended.
Top-tier reliability. Easy to deploy and perfectly stable 40G transport. Great alternative.
The JG661A-LR4L-C is a 40G QSFP+ LC LR4L single-mode fiber transceiver supporting up to 2 km links and fully HP X140 compatible.
Yes, the JG661A-LR4L-C is OEM-tested for full interoperability with HP X140 series switches.
It supports single-mode fiber (SMF) using LC duplex connectors.
It supports up to 2 kilometers over standard single-mode fiber.
The JG661A-LR4L-C uses LC duplex fiber connectors.
It operates on four LAN-WDM wavelengths: 1271 nm, 1291 nm, 1311 nm, and 1331 nm.
It is housed in a QSFP+ (Quad Small Form-factor Pluggable) module for 40G Ethernet applications.
Yes, it meets the QSFP+ Multi-Source Agreement (MSA) standards.
It typically consumes less than 3.5 Watts during full operation.
Yes, the QSFP+ form factor supports hot-pluggable insertion and removal without system downtime.
It operates reliably between 0 °C and +70 °C (32 °F to 158 °F).
It is designed for data centers, enterprise networking, high-performance computing, and metro transport.
Yes, it supports Digital Optical Monitoring (DOM) for real-time tracking of temperature, voltage, and optical power.
The JG661A-LR4L-C is backed by a one-year limited warranty covering manufacturing defects.
Align the module with the switch’s QSFP+ port, insert until the latch clicks, then attach LC fiber cables.
Use the host switch's DOM feature or an SNMP-based network management tool to read real-time optical parameters.
United States
