Specifications:1. Type: Card Reader2.Interface: USB 3.1 + Type-C3.Application: SD4.0 UHS-IITF 4.0 UHS-II Dual slots card4. Chip: GL32265.Material: Aluminum alloy + ABS6.Support systems: Windows/ OS X/ Linux7.Color: Gray8. Product size: 71.8*26.5*13mm9. Weight: 21g10. Voltage: 5V11. Current: 500mA12. Speed: Up to 300MB/sFeatures:1. Read Most Memory Cards With Ease2.Simultaneously ReadWrite on 2 Cards.3. Transfer 1 GB big files in 4 seconds.4. Wide compatibility.5.Simultaneously read.Package Included:1 X Card Reader