UGREEN CM302 M.2 NVMe to PCIe 3.0 x4 Adapter Card

Upgrade your desktop with high-speed NVMe storage using the UGREEN CM302 M.2 NVMe to PCIe 3.0 x4 adapter card. This adapter lets you install a compact M.2 NVMe SSD into a standard PCIe slot, unlocking data transfer speeds up to 32 Gbps for faster boot times, quicker file transfers, and smoother performance in demanding applications.

Advantages

The CM302 supports M.2 NVMe SSDs in 2230, 2242, 2260, 2280, and 22110 form factors, providing flexibility for various drive sizes. It includes both standard and low-profile brackets, making it compatible with full-sized desktops and slim small-form-factor cases. The adapter is powered directly from the PCIe bus, eliminating the need for extra cables or power supplies. An integrated LED indicator shows SSD activity at a glance. Installation is truly plug-and-play—no drivers required on Windows, macOS, or Linux.

Suitable for

• PC enthusiasts upgrading to NVMe storage without an M.2 slot on the motherboard
• System builders adding high-speed storage to workstations or gaming rigs
• IT professionals cloning or testing M.2 NVMe drives via PCIe
• Users with slim desktops needing a low-profile adapter solution

Key specifications

• Host interface: PCI Express 3.0 x4 (compatible with x4, x8, x16 slots)
• Device interface: M.2 M-Key (NVMe PCIe-based SSDs only)
• Supported M.2 sizes: 2230, 2242, 2260, 2280, 22110
• Max data transfer rate: 32 Gbps (PCIe 3.0 x4 theoretical)
• Backward compatible with PCIe 2.0 and 1.0
• Bootable support (requires motherboard BIOS support)
• LED indicator for SSD activity
• Included brackets: standard-profile and low-profile
• Power: PCIe bus powered (no external adapter needed)
• Material: PCB with gold-plated PCIe contacts and metal bracket
• Operating temperature: 0°C to 70°C
• Certifications: CE, FCC, RoHS

Recommendations

For optimal performance, pair the CM302 with a PCIe 3.0 x4 or higher slot and a high-quality NVMe SSD. Ensure your motherboard BIOS is updated for bootable drive support if you plan to use it as a system disk. Note: This adapter does not support M.2 SATA SSDs (B-Key or B+M Key).