First, it supports M.2 SSDs regardless of notch count—single or double notch—enabling seamless insertion and use. Second, 99% of M.2 SSDs on the market use the NVMe protocol (AHCI is a small minority), and all are supported for read/write operations. Protocol distinction is no longer required. Compatible with various M.2 specifications, interfaces, and protocols—universal compatibility for broad SSD support. This is a versatile adapter for multiple SSDs. NVMe/NGFF to USB 3.1 Type-A/C 2-in-1 Adapter Card. Supports NVMe and NGFF protocol M.2 SSDs. Does not support PCIe AHCI protocol M.2 SSDs. To identify PCIe AHCI protocol SSDs: — Typically manufactured before 2015. — May feature labeling such as “PCIe AHCI” on the drive. Controller Chip: JMS581DL Supports approximately 99% of current-market M.2 SSDs (excluding PCIe AHCI protocol models). External Interface: — USB 3.1 Type-A direct-plug form factor—cable-free operation. — Backward compatible with USB 3.0 and USB 2.0 interfaces. — When connected to USB 2.0, operates at USB 2.0 speeds; when connected to USB 3.0, operates at USB 3.0 speeds. Read Speed: Up to 1000 MB/s (for reference only). Actual read speed depends on the connected SSD and host device—results may vary across different SSDs tested on the same system. Adapter Dimensions: 11 × 2.3 cm Color: As shown in image Material: Polycarbonate (PC) Package Contents: — 1 × Adapter card — 1 × Thermal silicone pad — 1 × Screw — 1 × Screwdriver Note: Color may vary slightly due to lighting conditions and display settings. Dimensional tolerance: ±1–3 cm.