Wood Credit Card USB Flash DrivesProduct SpecificationCapacity128MB,256MB,512MB,1GB,2GB,4GB,8GB,16GB,32GB,64GBInterface TypeUSB 2.0MaterialMaple , Rosewood , Walnut , Carbonized bamboo are availableSize90mm x 43mm x 5mmLogoColor printing /Silk printing /Laser engraveWeight19gPackageMetal tin box , wooden box  (customer can custom it )CompatibleWindows 98,XP,Vista,Windows 10,Windows 7,Windows 8,Mac OS 9.0/10.0, Linux etcData Retention TimeOver 1000000 timesWarranty3 yearsCharacteristic●High Read-Write SpeedWriting speed: 4-8MB/sReading speed: 10-20MB/s●Uploaded files ,Auto-Run, Encryption, Volume Label etc are available●No need Driver. Plug and play , support Hot Replaceable●Voltage: 4.5V-5.5V●Working Current: <50mA●Working Temperature: 0℃ ～ 60℃●Storage Temperature:  -20℃ ～ 85℃Warm Tips : 1. Why we received the USB Memory is different from the Capacity Label?USB Manufacture regards 1000MB as 1GB that means 1GB=1000MB.However, computer adopts 1GB =1024MB. And USB have some system files occupied the capacity.Capacity Label1GB2GB4GB8GB16GB32GB64GBComputer Transform Capacity0.93B1.86GB3.72GB7.44GB14.8GB29.76GB59.52GBSystem files capacity0.03GB0.06GB0.11GB0.22GB0.45GB0.89GB1.79GBReal Capacity0.9GB1.8GB3.61GB7.22GB14.43GB28.87GB57.73GB