SPECIFICATIONSBrand Name: KFHIREWCapacity: real capacityCertification: CEEncryption: NoFunction: work for Windows , can't work on Mac OSHigh-concerned chemical: NoneInterface Type: USB 2.0Logo by: laser engraveLogo service: freeMaterial: MetalModel Number: USB Flash Drive 2.0Origin: Mainland ChinaPackage: NoProduct Type: Flash Disk,Multifunctional,CreativeUSB: 10pcs/lotUse for: gift / business / photography / wedding     pls read before payment , thanks   after your order , pls send your logo in pdf or ai or png or jpeg format to our Email ,remark your order number Specification: USB flash drive USB 2.0 interface. Capacity of 128M/4GB/8GB/16GB/32GB/64GB. High speed data transfer performance . Our pen drive read speed is 4-10mb/s(The rate of performance depends on the different operation system available and various flash adopted,maybe you can get 10M+) Hot plug and play. Hardware Requirement: PC with USB connection,Notebook 10 years data retention. More than 10000 times of usage . Solid State Storage, Shock proof and electromagnetic proof .What is the real capacity? Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB; so there are some differences between display capacity and nominal capacity of flash memory product. 128MB= approximately 110MB-120MB 256MB = approximately 230MB-245MB 512MB = approximately 460MB-480MB     1GB = approximately 800MB-999MB     2GB = approximately 1.60GB-1.85GB     4GB = approximately 3.6GB-3.8GB     8GB = approximately 7.2GB-7.6GB   16GB = approximately 14GB -15GB   32GB = approximately 28GB -30G 64GB = approximately 58GB -60GB   Other Customer Product for You Reference Packing: Default PP bag packaging If you need paper packaging, boxes or other accessories,please contact customer service!  PP bag Certifications: Our Company:   Payment: AliExpress supports Visa,Boleto,MasterCard,Maestro Debit Card,Western Union,Webmoney,QIWI and wire Transfer via banks. If you still have any questions on the payment, Feel free to contact us. Shipment: 1.We will ship the items out within 2-3 days after we confirm the payment. 2.We only ship to confirmed order addresses.Your order address must match your shipping address. 3.The shipping cost does not include any import taxes,the buyers are responsible for customs duties. 4.We will refund buyers if buyers return the items within 15 days of buyers receipt of the items for any reason. However,the buyers should bear the return shipping freight and make sure that the items returned are in their original conditions. 5.Items are shipped by AliExpress Standard Shipping usually,reach most of countries within 15 to 35 bussiness days. Delivery time depends on destination and other factors,it may take up to 60 business days,except 90 days to Brazil. 6.If you want to get the item faster,please contact us to pay additional freight, we can offer you the following faster and cheaper shipping ways:UPS,DHL,Fedex,TNT,DEPX,EMS.Via these ways, you can get the item within about 7-10 business days.