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BiDi optics simplified fiber requirements.
JL308
Aruba 40G QSFP+ LC BiDi 150m MMF XCVR
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JL308
Aruba 40G QSFP+ LC BiDi 150m MMF XCVR
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JL308 is a high-performance SFP+ transceiver designed for 10G Ethernet applications in data centers and enterprise networks. This module features an LC connector and supports a short-range transmission distance over multi-mode fiber, making it ideal for high-speed, low-latency communications in critical network environments.
JL308 delivers reliable performance with support for Ethernet protocols and adheres to a compact SFP+ form factor, ensuring seamless integration into existing telecom and network infrastructures. Its optimized physical dimensions and robust design also cater to rigorous operating conditions, providing an excellent solution for modern high-speed network connectivity requirements.
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In a hyperscale data center deploying Aruba 40G QSFP+ LC BiDi 150m MMF transceivers (JL308), network engineers replace legacy 10G links with 40G BiDi optics over existing OM4 fiber trunks. This use case halves fiber count, maximizes port density on spine and leaf switches, and delivers 4× greater East-West throughput—boosting VM migration speeds by up to 300% and lowering cabling and operational costs.
A large university leverages JL308 Aruba 40G QSFP+ LC BiDi modules to modernize its multimode fiber campus backbone across 120-150m building links. By using BiDi optics on standard LC duplex patches, IT staff avoid costly re-cabling, achieve seamless 40G uplinks between core switches, and support bandwidth-hungry e-learning, VR labs, and big-data research applications—improving network resilience and cutting infrastructure refresh expenses by 40%.
An HPC center implements Aruba JL308 40G QSFP+ LC BiDi 150m MMF transceivers to link compute nodes and storage arrays within rack-to-rack distances under 150 meters. This setup delivers ultra-low latency and 40G bandwidth per port, enabling parallel processing workloads (MPI, AI training, scientific simulations) to scale efficiently. The outcome is a 50% reduction in interconnect congestion and a 25% performance uplift in distributed compute tasks.
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 JL308 |  J4858C |  J4859D (5 Units) |  JL563A |  J4860D | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP+ | QSFP+ | SFP | SFP+ |
| Data Rate | 10G | 10G | 40G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850 nm | 850 nm | 850 nm | 850 nm | 850nm |
| 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 | 300 meters | 300 meters | 300 meters | 300 meters | 300 meters |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Power Consumption | 1.5W | 3.8W | 3.5W | 1.5 W | 3.0W |
| 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 | JL308 10GBASE-SR SFP+ Transceiver | J4858C 10G SFP+ Optical Transceiver | J4859D QSFP+ Transceiver Module (5 Units) | JL563A 10G SFP Transceiver | J4860D 10G SFP+ Transceiver |
| Height | 0.125 inches | 0.12 inches | 0.9 inches | 0.8 inches | 0.9 inches |
| Width | 0.5 inches | 0.65 inches | 0.7 inches | 1.2 inches | 0.65 inches |
| Depth | 0.75 inches | 0.65 inches | 0.4 inches | 1.5 inches | 1.5 inches |
| Weight | 0.05 lbs | 0.05 lbs | 0.2 lbs | 0.05 lbs | 0.1 lbs |
BiDi optics simplified fiber requirements.
Consistent short-range 40G links.
Stable bidirectional performance.
Easy deployment.
Strong Aruba optic.
The Aruba 40G QSFP+ LC BiDi 150m MMF XCVR (SKU: JL308) is a 40 Gbps bi-directional multimode fiber transceiver designed for high-density data center and campus interconnects over duplex LC connectors up to 150 meters on OM3/OM4 fiber.
The JL308 transceiver uses standard duplex LC connectors with OM3 and OM4 multimode fiber cables.
This transceiver supports a maximum reach of 150 meters over OM3 or OM4 multimode fiber.
The Aruba JL308 supports 40 Gigabit Ethernet (40GbE) using the QSFP+ MSA protocol.