USB bands 1.silicone material,nontoxic,durable 2. enchanting designs,various colors 3.1GB, 2GB, 4GB, 8GB available promotional rubber USB bands1.Faster ... of 10 MB/sec. read and 5 MB/sec. write (16 GB capacities only)3.Operating temperatures — 32° F to 140 ... .10.5.x+YesLinux v.2.6.x+Yes promotional rubber USB bands