Adata UR340 32Gb USB3.0 flash drive , zinc-alloy housing with integral strap hole for lanyard or keychain , waterproof and dustproof with COB design , unibody nickel construction , read/write : 100/30 mb/sec , 34.8x12.3x4.6mm , support Linux , Mac OS , support free OStoGO + UFDtoGO + 60days trial norton internet security - 5 years warranty