PEX8718-AB80BI G
| Part Number | PEX8718-AB80BI G |
|---|---|
| Manufacturer | Broadcom Limited (formerly PLX Technology) |
| Category | Integrated Circuits (ICs) > Interface – Specialized (PCI Express Switches) |
| Description | High-performance, 16-lane, 5-port PCI Express Gen 3 (8.0 GT/s) switch IC utilizing multi-host ExpressLane architecture, featuring ultra-low latency, flexible port configuration, and advanced DMA engines for high-density storage and industrial backplanes. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The PEX8718-AB80BI G is a high-performance 16-lane, 5-port PCI Express (PCIe) Generation 3 switch matrix designed by Broadcom Limited. Architected with PLX Technology ExpressLane switching logic, this silicon device supports multi-channel peer-to-peer data transmission with a maximum throughput speed of 8.0 GT/s per lane. The PEX8718-AB80BI G supports Non-Transparent Bridging (NTB) multi-host configurations, delivering hardware isolation and failover backup links for enterprise storage controllers and industrial networking backplanes. It integrates optimized direct memory access (DMA) hardware engines to reduce CPU load and cut end-to-end signal latency. Packaged in reliable lead-free FCBGA-324 (19×19mm), this PCIe Gen 3 switch is suitable for edge AI accelerators, rugged industrial servers and multi-channel vision processing systems.
Core Advantages
Ultra-Low Packet Latency Matrix
Delivers cut-through latency down to approximately 126 ns (reference value from same ExpressLane Gen3 product line), eliminating transmission bottlenecks under heavy multi-point peer data routing workloads.
Advanced Multi-Host and Non-Transparent Bridging (NTB)
Built-in NTB function supports multi-processor isolated computing networks, enabling secure cross-host data transmission over shared PCIe buses without memory address conflicts.
Flexible Lane Bifurcation and Port Splitting
Configurable physical port allocation across its 16 Gen3 lanes; designers can set each downlink port from x1 to x8 width to match different peripheral hardware layouts.
Integrated On-Chip DMA Sub-Engine
Embedded dedicated DMA channels accelerate large memory block data transfer, offloading data movement tasks from host processors to release system compute resources.
Key Specifications
| Brand | Broadcom / PLX Technology |
|---|---|
| RoHS Status | RoHS 10 Compliant, Halogen-Free Green device (marked by trailing “G” suffix) |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | FCBGA-324 (19×19mm) |
| Mounting Type | Surface Mount Technology (SMD/SMT) |
| Surface Marking / Silkscreen | PEX8718-AB80BI G Marking |
| PCIe Generation Standard | Fully PCI Express Gen 3.0 compliant, backward compatible with Gen1/Gen2 |
| Total Lane Count Capacity | 16 SerDes high-speed transceivers |
| Total Port Count Limit | Up to 5 configurable bidirectional functional ports |
| Raw Signalling Link Rate | 8.0 GT/s (Gigatransfers per second) per PCIe Gen 3 Lane |
| Diagnostic Features | Integrated performance monitor, SerDes eye diagram capture, hardware loopback BIST test |
| Hot-Plug Interface Support | Native hardware-managed hot-plug control signal pins |
| Core Power Supply Rail | On-chip integrated low-voltage digital power management circuits, core voltage 1.0V, SerDes analog voltage 3.3V |
| Operating Temperature Range | Industrial grade: -40°C to +85°C ambient working temperature |
Typical Applications
- High-Speed SSD Storage Arrays, NVMe disk enclosures and RAID host controller adapters
- Industrial automation rack equipment, PICMG standard backplanes and CNC control motherboards
- Edge AI computing nodes, multi-GPU parallel acceleration clusters and deep learning hardware racks
- Military signal acquisition systems, radar processing arrays and rugged avionics equipment
- Medical imaging hardware, high-speed real-time frame grabbers and sonar signal processing units
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet download, sample application, stock inquiry or bulk pricing quotation, please submit our online quick inquiry form. Our sales engineer team will reply to your message within 24 hours.
Frequently Asked Questions
Q1: Is your PEX8718-AB80BI G fully original Broadcom factory stock?
A: All PEX8718-AB80BI G switches in our warehouse are brand-new genuine Broadcom components, stored and shipped with complete ESD anti-static and moisture-proof dry-pack packaging protection.
Q2: What does the suffix “G” at the end of part number represent?
A: The “G” suffix stands for Green halogen-free lead-free packaging, fully compliant with RoHS 10 environmental hazardous substance restrictions.
Q3: How does NTB function realize dual-host system redundant backup?
A: NTB hardware isolates independent memory address spaces for two connected host processors. It builds isolated high-speed data transmission channels, preventing fault on one host from causing memory corruption of the backup host.
Q4: How can I obtain pinout tables, register configuration docs and bulk tier pricing?
A: Fill out the quick inquiry form on this page with your project demand details. Our technical support will send full datasheet and related engineering documents within 24 working hours.

