External powered usb ports for mac dual voltage

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It is fully compatible with USB 1.1 equipped systems adjusting to the lower bus speeds automatically.

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Furthermore, the devices allows concurrent use of slots to be in use simultaneously for reading, writing, and even transfers between media! The read-writer utilizes the speedy USB 2.0 bus for transfers to host computers of up to 480Mbits/sec. This easy to use device provides five multipurpose slots that hand nearly every known type of popular memory card on the market today. Synchrotech's USB 2.0 to Multi-Card Read-Writer 5 Slot offers unmatched versatility in a consumer memory card reader. Please choose from the menu on the left for alternative products. We're sorry this product has been discontinued.