2U 4 port Switch accessory cable kit, Riser 1 or Riser 2 (1 cable included). Contains the following OCuLink bundled cable: 755mm long, bundled cable kit (1 cable included) straight OCuLink SFF- 8611connectors to straight/right angle OCuLink SFF-8611 connectors Used in the R2208, R2208+8 and R2224 to connect switch AICs to HSBP PCIe SSD ports (SSD ports depend on installed location of the switch AIC)