Microchip Technology

PM40068B-FEI

PM40068B-FEI Description

The PM40068B-FEI from Microchip Technology is a high-performance 68-lane Gen4 fanout PCIe switch, designed for advanced data center, storage, and networking applications. Part of the Switchtec series, this specialized backplane connector enables efficient PCIe signal distribution with low latency and high bandwidth. Its surface-mount design ensures compact integration, while the tray packaging facilitates streamlined assembly in high-volume production. Though marked as obsolete (ECCN: OBSOLETE), its architecture remains relevant for legacy systems requiring Gen4 PCIe fanout capabilities, offering 16 GT/s per lane for scalable interconnect solutions.

PM40068B-FEI Features

• High-Speed Performance: Supports PCIe Gen4 (16 GT/s per lane) with 68 lanes, enabling ultra-low-latency data transmission.
• Fanout Optimization: Efficiently distributes PCIe signals across multiple endpoints, ideal for disaggregated architectures.
• Robust Integration: Surface-mount (SMT) packaging ensures reliable PCB mounting in space-constrained designs.
• Legacy Compatibility: Despite obsolescence, retains value for systems requiring backward-compatible Gen4 switching.
• Low Power Design: Optimized power efficiency for high-density deployments, reducing thermal overhead.

PM40068B-FEI Applications

• Data Center Interconnects: Facilitates PCIe expansion in servers and storage arrays.
• High-Performance Computing (HPC): Enables scalable GPU/FPGA connectivity in accelerated computing platforms.
• Network Switches/Routers: Supports high-throughput packet processing with PCIe-based I/O expansion.
• Legacy System Upgrades: Ideal for retrofitting older infrastructure with Gen4 bandwidth without full redesigns.

Conclusion of PM40068B-FEI

The PM40068B-FEI excels in environments demanding high lane count, Gen4 PCIe fanout, and low-latency switching. While obsolete, its 68-lane architecture and 16 GT/s performance make it a pragmatic choice for legacy upgrades or niche applications. Engineers valuing signal integrity, fanout efficiency, and power-aware design will find this switch a robust solution, particularly in data center and HPC contexts where PCIe scalability is critical.

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