1) It takes time to format a hard drive and for most hard drive manufacturers time=money. Most manufactures try to save as much money as possible.
2) The hard drive manufacturer's have no way of knowing in advance what file format (NTFS, FAT32, HFS+, etc.) the purchaser wants to use on the hard drive or if they want it partitioned as a single or multiple drives.
I will need to assume you are referring to external hard drives only. USB 3.0 has faster data transfer rates than USB 2.0 and may better match the data transfer rates of the hard drive hardware. USB 3.0 drives are backwards compatible with computers that have USB 2.0 ports. They will just operate using the USB 2.0 connector contacts and transfer speeds.
1) It takes time to format a hard drive and for most hard drive manufacturers time=money. Most manufactures try to save as much money as possible.
2) The hard drive manufacturer's have no way of knowing in advance what file format (NTFS, FAT32, HFS+, etc.) the purchaser wants to use on the hard drive or if they want it partitioned as a single or multiple drives.
I will need to assume you are referring to external hard drives only. USB 3.0 has faster data transfer rates than USB 2.0 and may better match the data transfer rates of the hard drive hardware. USB 3.0 drives are backwards compatible with computers that have USB 2.0 ports. They will just operate using the USB 2.0 connector contacts and transfer speeds.
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