This PCIE 4.0 to SFF 8643 adapter card is designed for use with NVME SSD converters, allowing for easy expansion of desktop storage. Compatible with PCIE x8 and x16 slots, it supports transfer of SFF-8643 to data cable and connection of 2x u.2 SSD bus broadband. Installation is simple and no driver is required. The card is committed to solving increasing storage needs of users and supports various operating systems, including Windows and Linux.