Supports hot plug & play, High speed for interface/Type-C/Micro-type/USB3.0 port . No physical drive required Plug-and-play; no external power supply required, USB bus-powered Support all current computer systems speeds vary depending on types of file being transferred and computer configuration. Interface USB 3.0 Excellent USB Memory stick in excellent condition Operating temperature: -10 to +55 degrees Celsius Storage temperature: -20 to +55 degrees Celsius Life: times About capacity: 256GB=approximately 220.0GB-240.0GB Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB Calculated, with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB; So there are some differences between display capacity and nominal capacity of flash memory products Attention: To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer. Please do not remove your USB flash drive when it is being used otherwise your datamay loss. After using USB flash drive, it is better to remove it from device as soon as possible. That willhelps to extend its storage . Please do not format your USB flash drive frequently, otherwise the USB bedamaged easily. Color: Silver Material: Metal Package Contents: 1 * Rotating 4-in-1 USB flash drive Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.