These flash drives have excellent physical construction. The housing is extremely strong and makes a good heatsink. I like the overall design too. It is very easy to handle. It makes pushing in and pulling out the drive very smooth. It's got a nice big hole for a wrist strap. The write speed is on the slow side. However, the read speed is very fast. I use these to install Windows and the speed just blows me away. So, if you need a flash drive with a fast write speed, you might want to check around. If you're ok with an average write speed and want a fast read speed, these will do the trick!