Intel 2U Spare Short Riser A2UX8X4RISER Compatibility: Intel Systems: Intel Server System R2208WT2YS Intel Server System R2208WTTYC1 Intel Server System R2208WTTYS Intel Server System R2224WTTYS Intel Server System R2308WTTYS Intel Server System R2312WTTYS Intel Server Chassis R2312WTXXX Intel Server Chassis R2000WTXXX Specifications: Form Factor:2U Expansion Slots:1 x PCI Express 2.0 x4 1 x PCI Express 3.0 x8