///RC-508 USB 3.0 PCI-E Express Card with 4 USB 3.0 Ports, Speed Up to 5.0 Gbps

RC-508 USB 3.0 PCI-E Express Card with 4 USB 3.0 Ports, Speed Up to 5.0 Gbps

  • PCI Express to USB Card
  • 4 x USB 3.0 Downstream Ports
  • Up to 5.0 Gbps Data Transfer Rate
  • Supports USB Battery Charging Specification Revision 1.2
  • Supports Simultaneous Operation of Multiple USB 3.0, USB 2.0 and USB 1.1 Devices
  • Hot-Swapping Feature that Allows You to Connect / Disconnect Devices without Powering Down the System
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SKU: 15-166-038 Category:

The Rosewill RC-508 is a PCI Express to USB add-on card. It easily connects to a motherboard via PCI Express (X1) interface to add four USB 3.0 downstream ports to your PC instantly. This means you can effortlessly connect multiple USB devices to your PC. The USB 3.0 ports support different data transfer rates – including low-speed (1.5Mbps), full-speed (12Mbps), high-speed (480Mbps), and super-speed (5Gbps). The hot-swapping feature allows you to connect/disconnect devices without powering down the system. The built-in 4-pin power connector allows for receiving extra power supply from system.

See Details

  • Single-lane (x1) PCI Express throughput rates up to 5Gbps 
  • Support USB Battery Charging Specification Revision 1.2 
  • Fully compliant with PCI Express Base Specification Revision 2.0 
  • 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 
  • Compliant with Intel's eXtensible Host Controller Interface (xHCI) Specification Revision 1.0 

detailed view and application

Dimensions 7.9 x 5.6 x 1.4 in
Model Number


Customer Service and Technical Support

Toll Free: 1 (800) 575-9885
FAX: (626) 271-9504

Customer Service and Technical Support Hours: Monday – Friday, 8:00 AM – 5:00 PM (PST)

Support Email: techsupport@rosewill.com
Warranty and RMA Email: rma@rosewill.com 

To register your product for warranty, please click on Warranty Registration.

User Manaul


RC-508 User Manual 3.39 MB 0 downloads