1.Good quality for Printer,data camera,MP3,DSC 2.Bare copper ... Ferrite:Single. Supply type:OEM/ODM Service Applications Mouse, keyboard, printer, scanner, camera, flash drive, MP3, mobile phones, digital ... hard drive, external optical floppy, USB card, ADSL Modem, Cable Modem, etc., almost all of the external devices etc. ... TO BMUSB AM TO Mini5P With Ferrite USB Adapter/Cable v2.0(AM/Mini5P) 5FT