On Monday, AMD formally unveiled its latest desktop processor series: the Ryzen AI 400 and Ryzen AI PRO 400. These processors are built around 'Zen 5' architecture cores, based on the 'Gorgon Point' chip. This new lineup continues the product strategy established by its predecessor, the Ryzen 8000G series (codenamed 'Phoenix Point'). However, recently released specifications reveal that the Ryzen AI 400 series offers fewer usable PCIe lanes compared to the 8000G series, somewhat limiting the platform's expansion potential. Specifically, the flagship model of the Ryzen AI 400 series physically incorporates 16 native PCIe 4.0 lanes. Yet, four of these are reserved for connectivity between the AM5 processor socket and the motherboard chipset, leaving just 12 lanes that can be freely allocated across the entire platform. For some lower-tier models within the series, the number of usable lanes may even decrease to 10.