UGREEN M.2 NVMe to PCIe 3.0 x4 Adapter Card Internal SSD Converter 2230 2242 2260 2280 Desktop PC Expansion 70504
UGREEN CM302 Dual-Slot M.2 NVMe/SATA to PCIe Adapter (70504)
Add compatible M.2 storage to a desktop computer through an internal PCIe expansion slot. The UGREEN CM302 provides two different M.2 positions: an M-Key path for a PCIe NVMe/AHCI drive and a B-Key SATA path that connects separately to a motherboard SATA port.
What it does well.
Key features
- M-Key slot for one compatible PCIe NVMe or AHCI M.2 SSD
- B-Key slot for one compatible SATA/NGFF M.2 SSD
- Supports M.2 2230, 2242, 2260 and 2280 drive lengths
- PCIe 3.0 x4 interface; fits compatible PCIe x4, x8 or x16 slots
- Backward compatible with PCIe 2.0 and PCIe 1.0 hosts
- Separate 7-pin SATA connection carries data for the SATA M.2 slot
- Gold-plated contacts and standard-/low-profile installation options
Verified specifications
- Model: UGREEN CM302
- Product code: 70504
- PCIe path: up to 32Gbps link bandwidth with a compatible PCIe 3.0 x4 host and SSD
- SATA path: up to 6Gbps with a compatible motherboard SATA port and SSD
- Supported drive sizes: 2230 / 2242 / 2260 / 2280
Compatibility and installation
Install the card in a compatible desktop PCIe slot. An NVMe/AHCI M-Key SSD communicates through the PCIe slot. A SATA/NGFF B-Key SSD requires a separate 7-pin SATA data cable from the card to an available motherboard SATA port; the PCIe slot alone does not carry that drive's SATA data. Operating-system and motherboard support are also required.
Important before buying
NVMe and SATA M.2 drives use different interfaces and are not interchangeable between the two positions. This is not a dual-NVMe card. Booting from an installed drive depends on motherboard firmware support, and actual speed is limited by the SSD, PCIe generation, lane allocation and SATA controller. It is an internal desktop adapter, not a USB enclosure, and it does not convert an M.2 SSD into an external drive. SSDs are not included.