looking for a new card reader ,i have capabilties for usb 3.0 card reader i use a sdhc sandisk extreme 30mb/s should i get a Pretec P240 USB 3.0 card reader or try a new usb 2.0 or firwire type i already own a sandisk all in one but it does not support sdhc ,only sd also is thunderbolt going to be an option in the future.,