The thumb drive sizes over 1GB include 2GB, 4GB, 8GB, 16GB, 32GB, 64GB, 128GB, 256GB, 512GB, 1T, and 2TB. Based on the above numbers, you can infer how many photos, songs, documents, and videos the thumb drives of 2GB/4GB/…/1TB can hold.

A typical USB drive is removable, rewritable, and smaller than an optical disc, and usually weighs less than 30 g (1 oz). Since first offered for sale in late 2000, the storage capacities of USB drives range from 8 to 256 gigabytes (GB [note 2]), 512 GB and 1 terabyte (TB [note 3]).

The flash drives with storage capacities ranging from 64GB to 256GB are common, depending on how much you need to transfer and the types of files you typically use or store. The below chart is shown for reference based on the most common file size.

Flash drives come in various different sizes, often containing 64, 128, 256, or 512 MB each. For reference, a high-resolution JPEG image file might range in size from.5 to 5 megabytes each, so knowing how big your files are is crucial to determining how big or small to go with your flash drive.