1.Portable HDD function: USB2.0 interface, windows management, is convenient for your study, work and entertainment. 2. Connection method: USB2.0 to computer/ VGA to Monitor/ AV to TV RJ-45 and USB2.0. 3. Supporting Operating System Microsoft Windows 98SE, Microsoft Windows ME, Microsoft Windows NT4.0, Microsoft Windows 2000, Microsoft Windows XP and MAC OS X (10.3.X or above versions) 4. Removable hard disk function: USB 2.0 interface Windows management directly. 5. Playback function: Play AV programs, such as MPEG4, DivX, DVD, VCD, MP3, CD and JPG pictures. 6. Resolution: 640*480 7. Edit function: copy/remove/rename/delete files/folders in HDD 8. Supporting Hard Disk: Supporting all brand of 2.5inch HDD slim type (9.5mm) up to 80GB 9. Support multi-disk partition HDD program playback 10. Subtitle optional for DivX program, Multi language optional 11. Search playback, repeat playback, A-B segment repeat playback, etc. 12. 9-picture playback function for the picture, 12 kinds of picture playback transition effect. 13. CVBX and VGA video output can be connected to TV or monitor 14.TV format: PAL/NTSC/Auto 15.Multi-function control key on unit and full function remote control. 16. Stereo audio output and digital coaxial output. 17. Product Dimension 80(W) x 132(L) x 19-(H) mm 18. Weight 215g 19. Carton size: 571*404*500MM 20. Packing: 50PCS/CTNS 21. Safety Specification Specifications: 1. Power consumption: <=800ma 2. Signal system: Auto/NTSC/PAL 3. Product dimension: 132 x 80 x 19 mm 4. Weight: 215g 5. Playable programs: MPEG4, DVD, SVCD, VCD, JPEG, MP3, CD-DA 6.Video output: 1vp-p +/- 0.1(75ohm) 7. Audio output: 2.0 vamps +/- 0.3v 8.Features of the audio signal output: 9. Dynamic range: More than 80db(1khz 0db) 10. Audio distortion: Lower than the test level 11. Crosswalk: More than 80db(1khz 0db) 12. HDD: 2.5 inch, 20GB/40GB/80GB 13. Remote control system: Infrared impulse, DC 3v, and button battery