A set of four USB flash drives with different colored casings is displayed against a white background. The flash drives are arranged in a vertical line, with the first one on the left having a black casing, the second one in the middle having a red casing, the third one on the right having a silver casing, and the fourth one on the far right having a white casing. Each flash drive has a metallic cap that is partially retracted, revealing the USB connector.