Features: Brand new and high quality USB3.0 speed up to 5 Gbps, transferring 1000 files completes within a cup of coffee. Stable power via 4Pin interface, suitable for most power sources. You don't need to worry about power compatibility. Low power consumption, eco-friendly for energy saving. Power is stable and sufficient to ensure each interface meets 5V 0.9A USB3.0 power requirements. Built with all solid capacitors in one piece, offering high-temperature resistance, long lifespan, and high stability. Capacitor explosion will not affect power performance. Double-wrapping design + screw fixation, motherboard mounting bracket adopts the double-wrapping scheme. The design is secure, durable, stable, and firm. It is also equipped with two mounting screws that integrate with the main unit when tightened. Specifications: Material: Printed circuit board + metal Color: Black Size: Approximately 121x82x22 mm / 4.76x3.22x0.86 inches Product Name: 4Port USB3.0 PCI-E Expansion Card Product Model: PVU3-4P-V1 Output Interface: USB3.0 Type-A interface x4 Input Interface: PCI-E host interface Power Supply: Power (4Pin interface) Design Features: Quick expansion of 4 USB3.0 interfaces Note: Due to lighting effects and photography angles, there may be color differences in the product. Please understand. Due to manual measurement, there may be a tolerance in product size. Packaging Includes: 1x 4Port USB3.0 PCI-E Expansion Card 2x Mounting Screws 1x 15PIN to Large 4PIN SATA Power Cable (30cm)