Converts single M. 2 NVMe M-Key slot into multiple SATA 3.0 ports for storage expansion; Each SATA III port delivers up to 6Gbps high-speed bandwidth for HDD & SSD; Professional SATA port multiplier chip ensures stable multi-drive concurrent operation; Standard 2280 NGFF form factor, fits all motherboards with vacant M. 2 M-Key slot; Plug-and-play, compatible with Windows, Linux, macOS for PC & NAS assembly