The UGREEN CM302 is an internal desktop expansion card with separate M.2 positions for compatible NVMe and SATA solid-state drives. Its PCIe 3.0 x4 interface connects the NVMe drive to the motherboard, while a separate SATA data connection is required for the M.2 SATA drive. The adapter supports common M.2 SSD sizes including 2230, 2242, 2260 and 2280. Its dual-path design is useful when adding compatible M.2 storage to a desktop computer with the necessary PCIe and SATA connections. Key Features Dual M.2 Slots: Separate positions for NVMe and SATA M.2 SSDs. PCIe 3.0 x4: Host expansion interface for the NVMe storage path. Dedicated SATA Path: SATA SSD requires motherboard SATA data connectivity. Multiple M.2 Sizes: Supports 2230, 2242, 2260 and 2280 form factors. Separate Transfer Ratings: Up to 32 Gbps for PCIe and 6 Gbps for SATA paths. Technical Specifications Component Specification UGREEN Model CM Host Interface PCIe 3.0 x4 NVMe Slot M-Key PCIe NVMe/AHCI M.2 SATA Slot B-Key SATA/NGFF M.2 Supported M.2 Lengths 2230, 2242, 2260, 2280 SATA Connection 7-pin motherboard SATA data link Maximum PCIe Path Rating 32 Gbps Maximum SATA Path Rating 6 Gbps Compatibility & Important Information The NVMe and SATA SSD positions use different interfaces and cannot be treated as interchangeable. The SATA M.2 drive requires a separate 7-pin SATA data connection to the motherboard. The NVMe SSD communicates through the host PCIe slot. SSD drives must be selected separately. Package Contents 1 × UGREEN CM302 dual-slot adapter card Please to review Q: Can this card conne both NVMe and SATA M.2 drives? A: Yes. It has separate slots for the two protocols. Q: Does the SATA M.2 SSD work through PCIe alone? A: No. The SATA SSD requires a separate motherboard SATA data connection. Q: Which M.2 sizes are supported? A: 2230, 2242, 2260 and 2280. Q: Which expansion interface is used? A: PCIe 3.0 x4. Q: Does the adapter include an SSD? A: No. It is an SSD adapter card; drives are separate.
