Per the title, it's a 4TB QVO SATA SSD.
And yes it's a QLC SSD but despite the hate, it's still perfectly suitable for most use cases. There are some who need the hardcore write speeds and buffer for video editing/etc and if so, this isn't for you. But if you are just looking for a plentiful SSD to store your Steam library, photos, movies, etc… then this is a great option.
Personally I feel that the prices of 4TB SSDs are a bit high and I'd rather wait for a bit more competition in this space but if you need 4TB of storage in a single 2.5" SSD drive, then this is a decent option.
Samsung SSD Cashback promotion has redemption period until end of August but item must be purchased before end of July 2019!
Good price but I will hold back for another one month only because Samsung has extended cashback again till the end of August(instead of July)!