1.亚马逊驱动器：
Amazon Drive 是 Amazon 提供的文件托管服务和云存储。它允许云存储、文件托管、文件共享和文件备份。此驱动器上的文件和文件夹可以从台式机、手机和平板电脑等多种设备传输。 Amazon Drive 最初被称为 Amazon Cloud Drive。它在世界范围内不可用。它适用于某些选定的国家/地区。它于2011年推出。
2. Backblaze B2 :
Backblaze B2 是由 Backblaze Incorporation 提供的云存储服务。它与 Amazon S3 和其他云存储服务非常相似。它是一种对象存储服务。它由 Backblaze Incorporation 于 2015 年推出。它提供 10 GB 的免费存储空间。它还为高级帐户提供无限的存储空间。它也被称为 B2 云存储。
Amazon Drive 和 Backblaze B2 之间的区别：
| AMAZON DRIVE | BACKBLAZE B2 |
|---|---|
| It is owned by Amazon. | It is owned by Backblaze Incorporation. |
| It was launched in 2011. | It was launched in 2015. |
| It offers 5 GB free storage space. | It offers 10 GB free storage space. |
| It provides limited storage space for paid. | It provides unlimited storage space for paid. |
| It is used in all countries excluding Mexico and China. | While it is used world wide. |
| It has the maximum storage size of 30 TB. | Maximum storage size is unlimited here. |
| Maximum file size in Amazon Drive is 2 GB via Web and 50 GB via Drive application. | Here is no such restrictions. |
| It does not support file versioning. | It supports file versioning. |
| It charges comparatively more for additional storage that means it is more costly. | It charges less for additional storage that means it is less costly. |
| It is used mainly for storing photos. | It is used for storing all types of files including photos, videos, pdf etc. |