NVMe M.2 enclosure & USB2.0 hub 2 in 1 adpater with SD/TF card reader SSD enclosure built in intelligent chips, internal M.2 interface supports fast data transfer with 10 Gbps Compatible with M.2 NVMe & M.2 SATA (NGFF) with M-Key & B+M key Supports multiple sizes of M.2 SSD specifications (2242/2260/2280 SSD) Not compatible with B Key Connectors M.2 PCIe AHCI SSDs, M.2 PCIe devices such as WiFi and capture cards, mSATA SSDs, and non-M.2 form factor SSDs 2 USB-A ports are USB 2.0 ,data transfer speed is 480Mbps SD/TF card reader is USB 2.0 too, and two slot can not be used at the same time