Leather USB Stick ELE-010 Material: leather+metal Dimension: 75m*25mm*11mm(L&W*H) Weight: 28g Colors Available: brown, black LOGO Methods: embossing, silkscreen printing Certifications: CE, FCC, ROHS M.O.Q.: no limits Delivery time: 3-5 working days 24/48-Hour Rush Service: not available Technical Features: 1) Interface: USB 2.0, or USB 3.0 optional 2) Available capacities: 256MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16GB, 32GB, 64GB, 128GB,256GB 3) Data transfer rate(USB2.0): 3-7MB/s for write, 12-15MB/s for read 4) Operating Systems: Windows, Vista, Mac OS, Linux 6) Data retention: 10 Years Minimum