PCI-E 3.0 M. 2 M-key to Oculink SFF-8612 SFF-8611 Host Adapter for GPD WIN Max2 External Graphics Card & SSD
 This convertor only work for GPD WIN Max2 Laptop, Maybe not work for other laptop.
 The convertor  expands the system by one SFF-8612 interface.
 It can be connected e. g. one SSD or  Graphics Card by using an optional cable+power.
 The card transmits PCI Express 4x signals using the NVMe protocol.
 Data transfer rate up to 32 Gbps, Supports NVM Express (NVMe) 1.2
 Package included:
 1 x OCuLink SFF-8612 female to  Key M male Adapter
 1 x Oculink SFF-8611 cable.
 1 x OCuLink SFF-8612 female to  PCI-E 16x Adapter
 System requirements
 Linux Kernel 4.3 or above
 Windows 8.1 / 8.1 -64/10/10-64