Compre Analysis: QCN9274/QCN6274 WiFi7 Modules – M.2 vs mini PCIe Interface

With the rapid deployment of Wi-Fi 7 technology, Qualcomm’s QCN9274 and QCN6274 have become core chipsets in next-generation wireless modules due to their high performance, multi-band support, and advanced MIMO capabilities. A critical design decision is the choice of interface format. This article provides an in-depth comparison of M.2 SLOT (2x2 5G & 2x2 6G) versus mini PCIe SLOT (2x2 5G & 2x2 6G) for these modules, offering valuable insights for hardware developers and system integrators.

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1. Background: QCN9274 / QCN6274 Overview

• Process Technology: 7nm for low power and high integration
• Frequency Support: 2.4GHz / 5GHz / 6GHz (Tri-band capable)
• MIMO Capability: Up to 4x4 (typically configured as 2x2)