FAST USB 3.0 PCI-E PCIE 4 PORTS Express Expansion Card Adapter - Super fast and high-capacity transfer solution, stable and reliable - Fully compatible with PCI Express Base Specification Revision 2.0 - Supports simultaneous operation of multiple USB 3.0, USB 2.0, and USB 1.1 devices - Supports 4 downstream ports for all speeds - Built-in 4-pin power connector for receiving extra power supply from the system - Supports Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XP - Approx. Size: 11.8cm x 7cm x 1.8cm / 4.6" x 2.8" x 0.7" For further details: Whatsapp: الماركة ماركة أخرى الحالة جديد