The chipset and socket are the most critical factors as they determine CPU compatibility. For Intel, ensure you are sourcing LGA 1700 or LGA 1200 sockets depending on the generation, while for AMD, AM4 or AM5 are the industry standards. For wholesale, it is vital to match the chipset (e.g., B660, Z790, B550) to the target market's performance needs—B-series chipsets offer the best balance of cost and features for office and mid-range gaming, while Z or X series are required for high-end enthusiasts.