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 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,not need for extra power supply. Supports for Windows 7 (32-bit/64-bit), for Windows Vista (32-bit/64-bit), for Windows XP for Windows XP/2003/Vista/2008/7 and for Windows 8/10 32 or 64 Bit Specifications: Name: PCI for Express To 4-Port USB3.0 Expansion Card Number of Interfaces: 4 Port USB 3.0 Color: Black Transfer Speed: 5Gbps Size: approx 120x96x83mm/4.72x3.78x3.27in Product weight: 100g Product material: Plastic+Metal System support: Windows2000/XP/Win7/8/10 Package Includes: 1 x PCI for Express To 4-Port USB3.0 Expansion Card 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.