
UGREEN M.2 NVMe + M.2 SATA to PCI-E 3.0 X 4 – PCI express card | 70504
The UGREEN CM302 (item 70504) is a PCIe expansion card that adds two M.2 SSD slots to a desktop PC: an M-Key slot for NVMe SSDs over PCIe 3.0 x4 at up to 32Gbps, and a B-Key slot for M.2 SATA SSDs at up to 6Gbps. It takes 2230, 2242, 2260 and 2280 SSDs.

M-Key NVMe slot, PCIe 3.0 x4: The M-Key slot runs an NVMe SSD over the PCIe 3.0 x4 interface at up to 32Gbps. This is a practical way to add a fast NVMe drive to a desktop that has no free M.2 slot on the motherboard.
B-Key slot for M.2 SATA SSDs: The second slot is for M.2 SATA SSDs. It is connected through the card's 7-pin SATA connector to a SATA port on the motherboard using the included 0.5 m SATA cable, and runs at up to 6Gbps.

Four SSD lengths: Both slots accept M.2 SSDs in 2230, 2242, 2260 and 2280 sizes, so most common M.2 drives fit.
PCIe compatibility: The card works with PCIe 3.0 motherboards and is backward compatible with PCIe 2.0 and 1.0 slots, at the speed of that slot.
Who it's for / Works with
Desktop computers with a free PCIe slot, running Windows or Linux, where you want to install an M.2 NVMe SSD, an M.2 SATA SSD, or both.
Good to know
The SATA SSD slot only works when the card's SATA connector is connected to a motherboard SATA port with the included cable.
Technical Specifications
| Brand | UGREEN |
| Model | CM302 |
| Item No. | 70504 |
| Inputs | M.2 M-Key (NVMe SSD), M.2 B-Key (SATA SSD) |
| Host Interface | PCIe 3.0 x4 (backward compatible with PCIe 2.0 / 1.0) |
| SATA Output | 7-pin SATA connector for the B-Key slot |
| Speed | Up to 32Gbps (NVMe), up to 6Gbps (SATA) |
| SSD Sizes | 2230, 2242, 2260, 2280 |
| Systems | Windows, Linux |
| Included | 0.5 m SATA cable |
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