Security may not be a great concern for people who only use flash drives for casual data transfers, but there are some consumers and businesses that value data protection greatly, so Buffalo made the RUF3-HSL Series.
Said line of NAND Flash-based storage solutions is protected by AES 256-bit hardware encryption, which is about as good as encryption can get.
The drives all weigh 10 grams / 0.35 ounces and have capless USB 3.0 ports with a slide-out mechanism.
Sales will begin around the middle of February 2014 (that's next month) in capacities of 4 GB, 8 GB, 16 GB and 32 GB.
The prices of the Buffalo RUF3-HSL flash drives range from 8,925 Yen / $87 / €63 to 23,310 Yen / $227 / €166. Also, they are all colored black, save for the USB port of course (metal gray with blue on the inside).