Compliant with PCI-E and Mini PCI-E industry specifications for reliable performance. PCI-E 1X slot with side-open design supports PCI-E 1X/4X/8X/16X cards and USB devices. Broad compatibility: Compatible with multiple computer systems. Requires an external 5V/12V power supply to power USB and PCI-E devices; 12V is supplied to the PCI-E 1X device, and 5V is supplied to USB. This adapter card efficiently tests PCI-E cards, saving time and labor costs in mass production and testing. Features: Compliant with PCI-E and Mini PCI-E industry specifications. PCI-E 1X slot with side-open design supports PCI-E 1X/4X/8X/16X cards and USB devices. Strong compatibility with various computer systems. External 5V/12V power supply required for USB and PCI-E devices. Efficiently tests PCI-E cards, saving time and labor. Specifications: Material: ABS Size: Approx. 5 x 3cm / 1.97 x 1.18in Color: Green Package List: 1 x Riser Card 1 x Accessory Package 1 x Screwdriver 1 x 4Pin Cable If you encounter any product issues after receiving the goods, such as damage or incorrect quantity, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.