Use :
  For LAPTOP PC on 54mm EXPRESSCARD port. 
Allows you to add 3 external USB 3.0 ports to your laptop.
Flush type, this card fits completely into the laptop's housing, so nothing protrudes once inserted and the USB ports are level with the side panel of the PC.
Compatible with all versions of Windows (2000, XP, VISTA, SEVEN, 8, 10.... IN 32 OR 64 bits).
Features :
FRESCO LOGIC FL1100 CHIPSET.
The Fresco Logic chipsets are among the fastest in USB3 and above all allow higher power supply for peripherals (up to 1.5A).
USB 3.0 SUPERPSEED 5G.
The three USB3.0 ports are combined with PCIe 2.0 interface, so they comply with Intel xHCI-rev0.96 specifications.
Connects to a 54mm ExpressCard port.
Use :   For LAPTOP PC on 54mm EXPRESSCARD port.  Allows you to add 3 external USB 3.0 ports to your laptop. Flush type, this card fits completely into the laptop's housing, so nothing protrudes once inserted and the USB ports are level with the side panel of the PC. Compatible with all versions of Windows (2000, XP, VISTA, SEVEN, 8, 10.... IN 32 OR 64 bits). Features : FRESCO LOGIC FL1100 CHIPSET. The Fresco Logic chipsets are among the fastest in USB3 and above all allow higher power supply for peripherals (up to 1.5A). USB 3.0 SUPERPSEED 5G. The three USB3.0 ports are combined with PCIe 2.0 interface, so they comply with Intel xHCI-rev0.96 specifications. Connects to a 54mm ExpressCard port.