SanDisk, as one of mayor flash memory manufacturers, naturally has big USB flash drive portfolio. It's very hard to stand out, when there is a huge amount of different USB flash drive models from different manufacturers on the market. Generally speaking, you can only recognize a specific type only by its different USB casing. Design of casing is something that all manufacturers pay attention to attract more customers. On the other hand, in the eyes of final user a big plus is always bigger capacity and speed of data transfers.