usb disk 1.capacity:128MB,256MB,512MB,1G,2G,4G 2.high speed of reading and writing 3.Can print your logo 4.CE FCC ROHS usb disk1) Available capacities: 128MB, 256MB, 512MB, 1G, 2G, 4G, 8G2) Comes with 2-year warrantyUSB 2.0 standard3) Full technical specs available from our website4) Stable flash quality control with fully support 5) Accept OEM project, could imprint required LOGO.