PCIe Protocol Only Converts M. 2 NGFF B Key (4G/5G module) to M Key or B Key; explicitly Not compatible with SATA-based modules.; Built-in SIM Card Slot Onboard Nano SIM holder for cellular connectivity; no external adapter required.; Reset & Shorting Points Includes reset jumper and short-circuit test points for easy module debugging.; Adjustable Mounting Comes with interchangeable screws to securely fit both 3042 and 3052 size M. 2 modules.; Ultra-thin Form Factor Plug-and-play, no driver needed, and no technical support provided (hardware-only solution).