Original Lenovo D231 2 in 1 5Gbps USB 3.0 Card Reader, D231

1. Product interface: USB 3.0
2. Theoretical transmission speed: 5Gbps
3. Theoretical support capacity: 2TB
4. Support card types: TF, SD (read only one card at a time)
5. Operating system: Windows XP/7/8+; Mac OS X 10.5+; Linux 2.4.x+
6. Product size: 7x1.1x1.8cm