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The PM42028B1-F3EI is a PCIe switch produced by Microchip. It belongs to the Switchtec PAX Gen 4 series and supports the Gen 4 PCIe standard to provide high-performance connectivity. The PM42028B1-F3EI is packaged in BGA and supports 28 channels, 16 ports, and hot-swappable controllers for each port. ‌

Main features

It is connected to high-performance PCIe architectures with Gpus, NVMe SSDS, and other endpoint pools, overcoming the limitations of rack-level multi-host systems based on PCIe tree topologies

High-reliability PCIe, featuring powerful error control, hot-swappable and accidental swappable controllers for each port, end-to-end data integrity protection, and high-quality, low-power SerDes

SR-IOV and multi-host sharing of multi-functional endpoints

Supporting up to 16 ports and flexible ×1, ×2, ×4, ×8 and ×16 port forks, it can significantly save power consumption, cost and circuit board space, with no restrictions on port configuration as upstream or downstream

Baifu Software Development Kit (SDK

Comprehensive diagnosis and debugging

The PCIe structure is shared with multiple host SR-IOVs

It is connected to high-performance PCIe architectures with Gpus, NVMe SSDS, and other endpoint pools, overcoming the limitations of rack-level multi-host systems based on PCIe tree topologies

SR-IOV and multi-host sharing of multi-functional endpoints

Virtualization of the entire PCIe domain and endpoints with physical and virtual capabilities (such as SR-IOV NVMe SSD)

High-performance non-blocking switch

A switching capacity of up to 174 GBps

28-channel variant

The ports are divided into ×1*/×2/×4/×8/×16 channels

Error containment

Advanced Error Reporting (AER) on all ports

The downstream ports on all downstream ports include (DPC)

Poisoning TLP blockade

Complete timeout composition (CTS) to prevent the upstream host from entering an error state due to incomplete unpublished transactions

Hot-swappable controller and accidental swappable controller for each port

GPIO can be configured for different cable/connector standards

PCIe interface

Passive cables, managed cables and optical cables

Connectors such as SF-8644, SF-8643, SF-8639, and OCuLink

Diagnosis and debugging

Real-time eye capture

External loop

Errors, statistical information and performance counters

High-speed I/O

PCIe 4th generation 16 GT/ s

Supports OCuLink cabling, CEM ×16 slots and other interfaces

ChipLink diagnostic tool

A wide range of debugging, diagnostic, configuration and analysis tools with an intuitive GUI

Access configuration data, management functions and signal integrity analysis tools (such as real-time eye map capture)

Application scenarios

PM42028B1-F3EI is mainly applied in scenarios such as data centers and edge computing that require high-speed data transmission and flexible expansion, for instance, distributed storage systems and GPU cluster interconnection. ‌

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.