All in 1 card reader with 3 USB 2.0 hub build up a better bridge to back up or transfer your data among computers, cards, etc Expand your existing USB port to three high speed USB 2.0 ports easily 4 slots function on 52 different major types of digital storage cards Fashion and slim design, easy to operate, your memory cards'best companion USB bus powered, no external power needed 100% brand new high quality functional device Card reader specification: Hot swappable supported, compliant with USB2.0/1.1 Read high speed over 4.3 Mbps, write high speed over 1.3 Mbps Icon beside the card slots, easy to distinguish 4 slots that together read 23 flash memory cards LED working indicator light Support Win98/2000/XP Color: silver Size: 104 mm x 63 mm x 16 mm Support memory cards format: 1. CF1 2. CF 2 3. Extreme CF 4. Extreme III CF 5. Ultra II CF 6. HS CF 7. XS CF 8. CF Pro 9. CF Fwte Pro 10. CF Proll 11. Hltachl MD 12. Magic Stor 13. MS 14. MS Pro 15. MS MagicGate 16. MS Magic Pro 17. Extre MS Pro 18. Extreme II MS Pro 19. Ulta II MS Pro 20. MS MS MagicGate Pro 21. MS Select 22. SD 23. Extreme SD 24. Extreme III SD 25. Ultra II SD 26. SD Pro 27. SD Elitr Pro 28. HS SD 29. Ultra Speeqb SD 30. SD-ULTRA-X 31. MMC 1 32. MMC 2 33. MMC 4.0 34. SM 35. SMTOM 36. XD 37. HS RS MMC 38. DV-RS MMC 39. RS MMC 4.0 40. Mini SD 41. Ms MagicGate Duo 42. MS Pro Duo 43. MMC Micro 44. MS ROM 45. MS Duo 46. MS MagicGate Pro Duo 47. T-Flash 48. MD 49. HS MS Pro Duo 50. HS Mini SD 51. HS MS Pro 52. HS MagicGate Pro Duo USB 2.0 port specification: 3 USB2.0 ports available Up to 480 Mbps high-speed USB 2.0 interface Also back up to compliant with USB 1.1/1.0   read more »