Key usb flash drive EKY-027 Material: metal Dimension: 57mm*24.5mm*2.9mm(L&W*H) Weight: 7.5g Colors Available: red, green, blue, silver, gold, color customizable LOGO Methods: silkscreen printing/full color printing/laser engraving Certifications: CE, FCC, ROHS M.O.Q.: no limits Delivery time: 3-5 working days 24/48-Hour Rush Service: 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