The mobile hard disk in the market can provide 320GB, 500GB, 600G, 640GB, 900GB, 1000GB (1TB), 1.5TB, 2TB, 2.5TB, 3TB, 3.5TB, 4TB and so on, and the maximum capacity can be up to 12TB, which can be said to be the upgraded version of the flash memory products such as flash drive, disk and so on, and is widely accepted by the public.
The capacity of mobile hard disk is also in MB (megabytes) GB (1024 megabytes) TB (1TB = 1024GB), 1.8-inch mobile hard disk mostly provides 10GB, 20GB, 40GB, 60GB, 80GB, 2.5-inch has 500GB, 750GB, 1TB, 2TB capacity, 3.5-inch mobile hard disk box There are also 500GB, 640GB, 750GB, 1TB, 1.5TB, 2TB, 4TB, 6TB and even 8TB capacity, in addition to the desktop mobile hard disk, the capacity is even more up to 8TB super capacity.
The MobileHarddisk, as its name implies, is a storage product that uses a hard drive as a storage medium to exchange high-capacity data between computers, emphasizing portability. MobileHarddisk mostly uses USB, IEEE1394 and other interfaces with faster transmission speeds, which allows for higher speed data transfer with the system.
Because of the use of hard disk as a storage medium, mobile hard disk in the data read and write mode is the same as the standard IDE hard disk. As of 2015, the read speed of mainstream 2.5-inch branded mobile hard drives is about 50-100MB/s, and the write speed is about 30-80MB/s.
The vast majority of mobile hard drives on the market are based on standard hard drives, and only a small portion of them are based on miniature hard drives (1.8-inch hard drives, etc.), but the price factor determines that the mainstream mobile hard drives are still based on standard notebook hard drives.
References
Features of mobile hard drives. Baidu Encyclopedia [cited 2018-4-5]
Mobile hard disk maximum how much capacity
Mobile hard disk maximum capacity of 50TB, is the world's largest cloud service provider Amazon early launch of the enhanced hard disk, customers can copy massive amounts of data directly on it, and send the Snowball to Amazon to achieve data migration.
Mobile hard disk, mainly refers to the use of USB or IEEE1394 interface, can be plugged in or unplugged at any time, small and portable hard disk storage, can be higher speed and system for data transmission. On the USB1.1 interface specification of the product, in the transmission of larger amounts of data, will test the patience of the user. And USB2.0, IEEE1394, cSATA mobile hard disk interface is relatively good a lot. USB2.0 interface transfer rate is 60MB/s, USB3.0 interface transfer rate is 625MB/s, IEEE1394 interface transfer rate is 50 ~ 100MB/s. Advantages of mobile hard disk: large capacity; good compatibility, plug and play; fast speed; Small size, small mass; safe and reliable. Mobile hard disk can provide considerable storage capacity, is a kind of more cost-effective mobile storage products. Mobile hard disk can provide users with large storage capacity and good portability within the price range acceptable to users.
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What is the maximum capacity of a portable hard disk
The current maximum capacity of a portable hard disk is 5TB, and it is the 5TBBackupPlus portable hard disk from Seagate.
The new BackupPlus portable hard drive is built with aluminum alloy, is only 20.5mm thick, and is compatible with both MacOS and Windows systems. With a USB 3.0 interface, the BackupPlus drive is capable of data transfer speeds of up to 140MB/s, while the built-in 5TB of extra space can store up to 600 hours of HD video.
Expanded Information
Features of the portable hard disk:
1, large capacity;
2, small size;
3, high speed;
4, easy to use.
Damage causes:
1, magnetic head damage;
2, circuit damage;
3, integrated damage;
4, physical damage.
Reference: