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378928-B21-C
1000BASE-T RJ-45 SFP HP BladeSystem Compatible
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378928-B21-C is a high-speed QSFP transceiver module engineered for advanced networking environments. It supports a 100G data rate over multi-mode optical fiber using MPO connectors and is optimized for short-range transmission in applications such as data centers, telecom networks, and enterprise environments.
Designed with a compact form factor, the 378928-B21-C transceiver offers precise physical dimensions for easy integration into existing systems while maintaining compatibility with leading vendors including Cisco, Juniper, Huawei, and Arista. The module adheres to Ethernet and Fibre Channel protocols, ensuring reliable performance and efficiency in critical network applications.
378928-B21-C price is is available on request. Get immediate quote.
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| Product Type | Transceiver | Transceiver |
| Form Factor | QSFP | SFP+ |
| Data Rate | 100G | 10G |
| Connector Type | MPO | LC |
| Wavelength | 850nm | 1310 nm |
| Transmission Distance | Short-Range | Long-Range |
| Fiber Type | Multi-mode | Single-mode |
| Max Distance | 100 meters | 10 km |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, Fibre Channel |
| Network Interface | Ethernet | Fiber |
| Power Consumption | 3.5W | 1.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | 378928-B21-C High-Speed QSFP Transceiver | 378929-B21-C 10G LR SFP+ Transceiver |
| Height | 0.25 | 0.6 inches |
| Width | 0.90 | 0.75 inches |
| Depth | 1.50 | 2.5 inches |
| Weight | 0.05 | 0.2 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.
Rock-solid 1000BASE-T performance for our HP BladeSystem. RJ-45 connection is secure and provides full gigabit speeds. No issues.
Reliable copper SFP for Virtual Connect. Recognized instantly. Solid performance over Cat6 cabling. A perfect, cost-effective alternative for blade links.
Excellent build quality. These RJ-45 modules work flawlessly in our HP chassis. Stable gigabit connectivity with no heat issues.
Seamless integration and rock-solid stability. These 1000BASE-T transceivers provide dependable copper uplinks for our blade servers. Great value.
High-performance copper SFP. Plug-and-play simplicity for our BladeSystem. Consistent speeds and robust signaling across all tested ports. Satisfied.
Professional grade RJ-45 SFP. Handled our production traffic effortlessly. Perfectly compatible and offers significant savings over OEM hardware. Excellent.
SKU 378928-B21-C is a hot-swappable 1 Gbps RJ-45 SFP transceiver designed for seamless integration in HP BladeSystem environments.
Yes. The 378928-B21-C is fully compatible with HP BladeSystem c-Class interconnects and switch modules that support 1 Gbps SFP transceivers.
This SFP module supports IEEE 802.3ab 1000BASE-T for data rates up to 1 Gbps over copper Ethernet cabling.
It supports Cat5e/6 twisted-pair copper cables for link distances up to 100 meters (328 feet).
Yes. It features auto-negotiation for speed and duplex plus auto MDI/MDIX to simplify cabling without crossover cables.
Yes. The module is hot-swappable, enabling insertion or removal without powering down the HP BladeSystem.
Yes. This transceiver meets RoHS and REACH environmental standards for hazardous substances.
The transceiver operates in environments from 0 °C to 70 °C (32 °F to 158 °F) for standard temperature use.
The HP 378928-B21-C provides a Mean Time Between Failures (MTBF) exceeding 1,000,000 hours.
Insert the module into the BladeSystem interconnect bay’s SFP slot until it clicks firmly into place for instant recognition.
It’s supported in HP BladeSystem c-Class enclosures with FlexFabric or Virtual Connect modules that accept 1 Gbps SFPs.
Yes. It implements Link Fault Signaling (LFS) to notify connected devices of link loss or degradation.
No. The module is plug-and-play and does not require additional firmware or driver installation.
Yes. It supports IEEE 802.3az Energy Efficient Ethernet to reduce power consumption during idle periods.
HP provides a one-year limited hardware warranty covering defects in materials and workmanship.