Rosewill RC-505 Internal USB 3.0 interface cards/adapter

2-Port USB 3.0 PCI Express Card Model RC-505 - Fully compliant with PCI Express Base Specification Revision 2.0.
- Single-lane (x1) PCI Express throughput rates up to 5 Gbps.
- Compliant with Universal Serial Bus 3.0 specification Revision 1.0.
- Supports simultaneous operation of multiple USB 3.0, USB 2.0 and USB 1.1 devices.
Supports the following speed data rates as follows:
- Low-speed (1.5Mbps) / Full-speed (12Mbps) / High-speed (480Mbps) / Super-speed (5Gbps).
- Supports 2 downstream ports for all speeds.
- Built-in 4-pin power connector for receiving extra power supply from system.
- Hot-swapping feature allows you to connect/disconnect devices without powering down the system.