ThinkSystem 2.5-inch 5300 480GB Entry SATA 6Gb Non-Hot Swap SSD Trayless
This option kit comes with the following components.

1 One 2.5-inch 5300 480GB Entry SATA 6Gb non-hot swap solid state drive
2 Four M3x3 screws
See https://pubs.lenovo.com/sd650-v2/install_server_hardware_options for more information to install the option kit.