I using a Toshiba Canvio External hdd its really a good product. Transfer speed is better then other HDD. I also have 2 other hdd but I really happy to use Toshiba Canvio HDD. I prefer that every computer users need to use Toshiba Canvio Alumy external hard disk drive for file backup. desing of toshiba canvio alumy exrernal hard disk drive is very nice. and size is use full I can easyly carry it in my laptop bag or pocket.