1U - PCI-E (x8) to PCI-E (x8) Riser Card
Supermicro CSE-RR1U-E8, PCI-E, Supermicro A+ Server 1040C-T/1040C-TB
Supermicro CSE-RR1U-E8. Standard connectivity: PCI-E, Compatibility: Supermicro A+ Server 1040C-T/1040C-TB