Lenovo System x3550 M2 M3 ThinkSystem SD530 SR950 Series PCI Express x16 Riser Card with Bracket 43W8880 11S43W8880.
Expansion Slots: 1x PCI Express x16
Interface: PCI Express x16
Type: Riser Card
Features: Bracket P/N: 43V6935 43V6939 11S43V6935 11S43V6939