Plustek ePhoto Z300 Up to 300 dpi USB color Photo / Document Scanners Light Source: LED Scanning Speed: 4 x 6 Photo: Approx. 2 sec. Document(A4): Approx. 5 sec. Max. Document Size: 8.5 x 11.7 USB Ports: USB 2.0 Power Requirements: 24 V DC / 0.75 A Operating Systems Supported: Windows 7 / 8 / 10 Mac OS X 10.8.x/ 10.9.x/ 10.10.x/ 10.11.x Dimensions: 11.40 x 6.30 x 6.20 Weight: 3.26 lbs.