Lenovo Rear Thunderbolt 3 adapter kit

Thunderbolt adapter - PCIe x4 - Thunderbolt 3 / USB-C 3.1 x 1 - for ThinkCentre M920t 10SF, 10SG; ThinkStation P330 30C5, 30C6; P330 (2nd Gen) 30CY, 30D0; P520 30BE, 30BF; P520c 30BX, 30BY; P720 30BA, 30BB, 30BU; P920 30BC, 30BD