Super Speed USB3.0 PCI-E Expansion Card Adapter External 2 Port USB 3.0 Hub PCI-E Card 4Pin Power Connector for PC Computer

Specifications: Item Weight: 39g / 1.38oz Package Weight: 68g / 2.40oz Item Size: 12 * 6.8 * 1.8cm / 4.72 * 2.68 * 0.71in L * W * H Package Size: 12.3 * 10 * 2.3cm / 4.84 * 3.94 * 0.91in L * W * H) With increased popularity of USB3.0, you can insert this expansion card and install the drive, then it could expand to 4 USB3.0 ports so that you can achieve mutual transmission within 4 USB3.0 devices. Features: Plug and play; Compatible with Windows XP/Vista/7/8/8.1/10 and more. Sturdy metal construction supports wear and tear, ensuring long-term use. It could work with or without 4Pin power connector. With 4Pin power connector, power supply can be more stable.