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Q2F19A-C
100GbE QSFP28 SR4 100m Transceiver HPE M-Series Compatible
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Q2F19A-C is a 10G SFP+ optical transceiver designed for high-speed data center and enterprise network applications. It features an LC connector, supports multi-mode fiber for short-range transmission up to 300 meters, and operates using standard Ethernet protocols.
The compact form factor of this transceiver is optimized for dense environments with dimensions comparable to industry-standard SFP+ modules. Ideal for telecom and enterprise networks, Q2F19A-C combines efficient power consumption with wide compatibility including major vendors such as Cisco, Juniper, Huawei, and Arista.
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| Q2F19A-C |  JH624A-C |  JH626A-C |  JL274A-C |  JH420A-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | QSFP+ | SFP | SFP+ | QSFP |
| Data Rate | 10G | 40G | 10G | 10G | 40G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850 nm | 1310nm | 850nm | 850nm | 850 nm |
| Transmission Distance | Short-Range | Long-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Single-mode | Multi-mode | Multi-mode | Multi-mode |
| Max Distance | 300 meters | 10 km | 300 meters | 300m | 150 meters |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 3.5W | 6W | 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 | Q2F19A-C 10G SFP+ Transceiver | JH624A-C QSFP+ Transceiver Module | JH626A-C 10G SFP Transceiver | JL274A-C 10G SFP+ Transceiver | JH420A-C QSFP+ 40G Optical Transceiver |
| Height | 0.15 inches | 0.25 inches | 0.39 inches | 0.33 inches | 0.72 inches |
| Width | 0.65 inches | 0.50 inches | 1.25 inches | 0.55 inches | 2.85 inches |
| Depth | 0.80 inches | 1.0 inches | 1.0 inches | 3.1 inches | 0.33 inches |
| Weight | 0.10 lbs | 0.1 lbs | 0.2 lbs | 0.2 lbs | 0.09 lbs |
Perfect for our HPE M-Series switches. Consistent 100G SR4 performance. Recognized immediately and error-free since day one.
High-performance 100Gbps SR4 optics. Reliable connectivity and robust build quality. Essential for our high-bandwidth M-Series fabric.
Excellent ROI for 100G networking. Plug-and-play simplicity. Signal margins are outstanding in our production environment.
Professional grade SFP28. Consistent 100Gbps throughput and stable signal integrity. A trustworthy solution for modern data centers.
Reliable and high-performing. Handles heavy production traffic effortlessly on our M-Series links. Very impressed with the quality.
Outstanding 100G SR4 reliability. Seamless integration and accurate DOM reporting. A dependable alternative for any enterprise setup.
The Q2F19A-C is a hot-pluggable 100GbE QSFP28 SR4 optical transceiver compatible with HPE M-Series switches, supporting up to 100m over OM4 multimode fiber.
This transceiver is fully compatible with HPE M-Series 10/25/40/100GbE switches, including M5300, M4300 and M3500 series models that feature QSFP28 ports.
The Q2F19A-C requires OM3 or OM4 multimode fiber; OM4 is recommended for reliable 100m reach at 100Gbps speeds.
Over OM4 multimode fiber, the Q2F19A-C supports a maximum reach of 100 meters at 100Gbps.
The transceiver uses a 850nm VCSEL laser array designed for SR4 multimode fiber transmission.
It supports an aggregated data rate of 100Gbps, delivered via four 25Gbps lanes (SR4 configuration).
Yes, the QSFP28 form factor is hot-pluggable, allowing insertion or removal without powering down the switch.
Power consumption is typically ≤ 3.5W, making it energy-efficient for high-density deployments.
Align the QSFP28 module with the switch port, gently slide it in until it clicks, then attach fiber cables to the correct Rx/Tx lanes.
No additional drivers are needed; the transceiver is recognized automatically by HPE switch firmware that supports QSFP28 SR4 modules.
Yes, as long as the other transceivers comply with QSFP28 SR4 IEEE 802.3bm standards and HPE compatibility requirements.
Operating temperature ranges from 0 °C to 70 °C (32 °F to 158 °F) for commercial environments.
Each unit includes a one-year limited warranty covering defects in materials and workmanship under normal use.
SR4 is optimized for short-reach multimode fiber up to 100m, whereas LR4 uses single-mode fiber for long-reach up to 10km.
Ideal for data center uplinks, switch-to-switch links, spine-leaf architectures, virtualization clusters, and high-performance computing networks.