Features: brand new and high quality High quality for NEC D720201 chip, super fast and high-capacity transfer solution, stable and reliable. Fully for PCI for Express base specification revision 2.0 With 4 port usb power moduel, not need for extra power supply Supports simultaneous operation of multiple USB 3.0, USB 2.0, and USB 1.1 devices. Built-in 4-pin power connector for receiving for extra power supply from the system Supports Windows2000 or XP or Win7 or 8 or 10 Specifications: Name: PCI for Express To 4-Port USB3.0 Expansion Card Number of Interfaces: 4 Port USB 3.0 Color: As Shown Transfer Speed: 5Gbps Size: approx 120x82mm or 4.72x3.2in Product weight: 110g Product material: PlasticandMetal System support: Windows2000 or XP or Win7 or 8 or 10 Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 for cm differences due to manual measurement. Package includes: 1 x PCI for Express To 4-Port USB3.0 Expansion Card