The disc comes with a plastic part to make him pass with a thickness of 7mm to 9mm (standard size in most PCs and external boxes), and a license key for Acronis Disk Data Migration Software migration software (to be downloaded from the website acronis). The software in question is fairly simple to use and works well for transferring data and partitions.
The price is itself extremely interesting because lee disc is based on MLC chips life expectancy well above TLC chips that equip SSD competitors in the same price.
I end with a word of advice: SSDs have a limited life expectancy read - write and, of this number is therefore, it is advisable to configure your operating cycles in order to limit the system (by disabling the prefetch / SuperFetch / indexing, creating backups of points, etc ... Not bad computer sites have fairly full articles on the subject.