SPECIFICATIONSBrand Name: oenyCapacity: Real CapacityCertification: CE,RoHSCustom Logo: laser engravedHigh-concerned chemical: NoneInterface Type: USB 2.0Interface type: usb 2.0 flash driveLogo service: free custom logoMaterial: MetalModel Number: USB 2.0 Flash DriveOrigin: Mainland ChinaPackage: YesPendrive: High SpeedProduct Type: Flash Disk,Normal,Multifunctional,Creative,flash disk,usb stick,CreativeUsb used for: wedding photography gift businesscapacity: 1GB 2GB 4GB 8GB 16GB 32GB 64GB 128MB 256MB 512MBtesting software: each one pass H2testwusb stick: High Quality Welcome Dear friend About Logo: ●Free Logo ● Laser logo is our free service ,and the color cannot be customized. If you need to print color LOGO, please contact customer service to pay more for color print logo fee . If you need to customize LOGO, please contact customer service. ●Please send us LOGO within 12 hours after payment done,if not,we will arrange to send out usb without logo. ●LOGO can be JPG, JPEG, GIF, PNG, BMP format,limit size to upload on page is 5MB. Features: Support USB version 2.0 Hot Plug & Play USB Service Voltage: 4.5V-5.5V Environment Temperature: -40°C - +70°C Storage Temperature: -50°C - +80°C Storage Lifetime: More than 10 years Operating System: Win98/ME/2000/XP/ Vista/7 , OS 9.X/Linux2.4 About Capacity: Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB; Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB; 128MB = approximately 115MB-125MB 256MB= approximately 230MB-250MB 512Mb = approximately 470MB-500MB 1GB = approximately 950MB-980MB 2GB = approximately 1.7G-1.9G 4GB = approximately 3.6GB-3.8GB 8GB = approximately 7.4GB-7.6GB 16GB = approximately 14GB -15GB 32GB = approximately 28GB -30GB 64GB = approximately 58GB -60GB So there are some differences between display capacity and nominal capacity of flash memory products. Custom LOGO Show: Package Certification Our company