J-Tech Digital JTD-UH302E 2-Port Super Speed USB 3.0 Express Card Adapter for Laptop Upgrade your laptop to SuperSpeed USB 3.0 via any available Express Card slot; Hot-Swapping Feature Allows to Connect/Disconnect Devices without Powering Down the System; Provides 2 ports, compatible with all USB 3.0, 2.0, and 1.1 compatible devices. Can power a single high-power USB 3.0 device with supplemental power cord (included); Fully compliant with USB 3.0 revision 1 and Intel xHCI rev 0.96 specifications; J-Tech Digital provides one year free replacement warranty.