Broadcom PEX8748-CA80BC G is a PCI Express (PCIe) switch Integrated Circuit (IC) used to expand and route PCIe lanes between multiple devices and hosts in high-performance systems. It especially targets applications that need scalable, high-bandwidth PCIe connectivity.

　　Key Features

　　• PCIe Switch Architecture

　　The PEX8748 is a Gen3 PCI Express switch that enables scalable connectivity among multiple PCIe devices (e.g., storage, NICs, GPUs) by acting as a hub between hosts and endpoints.

　　• High Lane Count

　　It supports 48 PCIe lanes and typically provides 12 logical ports for downstream/upstream configurations.

　　• PCIe Gen3 Support

　　Each lane operates up to 8.0 GT/s (Gen3 speeds), with backward compatibility to earlier PCIe versions.

　　• Package & Form Factor

　　Packaged in a 676-ball Flip-Chip Ball Grid Array (FCBGA) with a 27 × 27 mm footprint.

　　• Low Latency & High Throughput

　　The internal architecture features a non-blocking switch fabric and low maximum latency (≈100 ns), which helps maintain maximum bandwidth across multiple ports.

　　• Flexible Port Configuration

　　Ports and lanes can be dynamically divided (e.g., x1, x2, x4, x8 or x16), giving designers flexibility in how PCIe bandwidth is allocated.

　　• Robust Features

　　Supports advanced functions such as dynamic link width and speed control, error detection, and full payload size (2 KB), which improve performance and reliability.

　　Typical Applications

　　The PEX8748 is used in systems where high-performance PCIe connectivity is needed, including:

　　Enterprise servers and storage platforms

　　Networking and communication equipment

　　High-performance computing (HPC) and data centers

　　Embedded systems requiring multi-host PCIe routing

　　Specs at a Glance

CORE offer Broadcom's  PCIe Switches series products,If you need to know more about or purchase the product, you can consult CORE customer service or fill out the RFQ.