PCI Express to 2 PCI and 2 PCIe expansion enclosure Add two PCI and two PCI Express expansion card slots to a desktop or notebook computer system. - Expansion bay providing 2 PCI slots (32-bit/33 MHz), and 2 PCIe single-lane slots (250 Mbps) - Self-powered PCI/PCIe expansion system with on/off button - Rugged steel construction satisfies demands of industrial and server environments - Support for both 5 V and 3.3 V add-in full-length PCI cards - Complies with PCI 2.3 and PCIe 1.1 specifications - Supports advance error reporting including ECRC support - Supports add-in cards with extended length (38 cm)