ZRE-AESSD KODAK X200 1TB 512GB 256GB External SSD Hard Drive: USB3.1 Mini Portable Storage for Laptops, Smartphones, PS4, PC, MAC, and TV

Feature :
Read Rate: Up to 450MB/S. Write Rate: Up to 420MB/S.
Speed data from Kodak offical website.Speed depends host device, interface, usage conditions and the type of your device.

Support System:  Windows 10, 8, 7, Vista, XP / Mac OS 10.4 or higher / Linux 2.6.31 or higher.
Support Device: Computer/Laptop/TV/TV Box/Car Media Player/Android Smartphone(With OTG Function) and etc.
About use:  Plug and play (no software needed)
Interface type: Type C USB3.1/USB3.0(Compatible) /USB2.0(Compatible).
Body:  Dustproof,Shockproof,unique honeycomb design.
Weight:  38g weight(net weight)
Size : 90.5mm (L) x 45mm (W) x 10mm (H).
In package:SSD*1/ USB C Cable*1

About capacity:
128GB  Approximately  119GB
256GB  Approximately  238GB
512GB  Approximately  476GB
1TB       Approximately  930GB 

Vendors are using decimal arithmetic: 1MB = 1000KB, 1G = 1000MB calculated, but the operating system is using binary arithmetic: 1MB = 1024KB, 1GB = 1024MB. So there are some differences between display capacity and nominal capacity of flash memory products.