Some older external hard drives may make use of USB 2.0 only, which could limit your transfer speed options. The fastest drives use USB-C (the physical connector) or USB 3.1 (a data speed standard of 10 gigabytes per second) technologies, which are backward-compatible with both USB 3.0 and USB 2.0. USB portsĪn external hard drive connects to a computer through a USB port. Here are some of the most important features you’ll find in an inexpensive external hard drive. SSD technology costs more than HDD technology, which translates to far fewer SSD offerings in the sub-$100 price range.
Should you drop an SSD, there is far less chance of breakage than there would be with an HDD, too. Data transfer speeds for SSDs may be between 0.5 GBps and 3 GBps, far faster than HDD speed. This makes it more reliable than the spinning platters of an HDD. SSD technology has no moving parts, as it uses individual integrated circuits to store data. This speed difference is noticeable for consumers with high-end computing needs. Notably, an average SSD delivers about 10 times the data transfer speed of an average HDD. A read/write head inside the HDD hardware stores the data on the platters.ĭue to its older technology, external HDD costs less per GB of storage than SSD.īecause of the moving parts in an HDD, data transfer speeds range from about 150 MBps to 250 MBps. HDD technology is an older technology that uses spinning platters to store data.
When shopping, note which type is offered so you are sure to get what you need. Key considerationsĪs mentioned, external hard drives utilize one of two possible technologies: HDD (hard disk drive) and SSD (solid state drive) technology. If you don’t want to proceed with partitioning the disk, click Cancel.Īfter the operation finishes, click Done.Īfter you partition a storage device, an icon for each volume appears in both the Disk Utility sidebar and the Finder sidebar.Regardless of the cost of your external hard drive, take the time to encrypt the data so no one else can see the files if they find or steal the hard drive. If you want to proceed with partitioning the disk, click Continue. If a dialog appears that indicates it will take a long time to resize the startup volume, read the information in the dialog, then do one of the following: Read the information in the Partition Device dialog, then click Partition. Type a name for the volume in the Name field.įor MS-DOS (FAT) and ExFAT volumes, the maximum length for the volume name is 11 characters.Ĭlick the Format pop-up menu, then choose a file system format.Įnter the size or drag the resize control to increase or decrease the size of the volume. Note: If you click Add Volume instead, you can click the Add button to create an additional APFS volume in the container, or click Cancel to return to the Disk Utility window without making any changes to the storage device.
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