SIIG SuperSpeed USB 3.0 Switch 2-to-1 Adapter (JU-SW0012-S1) Shares a SuperSpeed USB 3.0 device between two systems; PCs and/or Macs Easily switches between systems via push buttons with LEDs indicating active PC USB bus powered; no power adapter required Supports ultra-fast data transfer rates up to 5Gb/s Compliant with Universal Serial Bus 3.0 Specification Certifications/Standards: FCC, CE, RoHS