USB3.0 interface,It is worth mentioning that it is backward compatible with USB2.0 interface, and the transmission speed is nearly 10 times faster than that of USB2.0 interface.32-bit embedded master chip, the first 32-bit mobile hard disk, encryption without deceleration. The 32-bit architecture chip configured for the USB3.0 interface has brought the performance and transmission speed of K390 to a . It greatly improves the reading and writing speed of K390 from the hardware, allowing it to maximize its transmission speed advantage, bringing a transmission experience that was only available on storage products without encryption functions in the past. Taking the reading and writing of 1GB files as an example, the same type of USB3.0 encryption products take 12 seconds, while K390, like ordinary USB3.0 mobile hard disks without encryption functions, only takes 9 seconds to complete. Compatible with all systems, perfect integration. Considering that modern mainstream computer operating systems are very diverse, you inevitably need to complete data exchange between different operating systems. To that this function can be used well in any , we have given K390 a new processor, making it perfectly compatible with , , Linux and Android operating systems. And in any system, its excellent performance be fully demonstrated. High efficiency and low consumption, energy saving and environmental protection, outstanding energy efficiency. When K390 is connected to the computer and there is no operation for a long time, it automatically enter the power saving sleep mode to reduce power consumption. Golden ratio, the jet-black high-grade environmentally friendly plastic shell, the length and width dimensions that reach the golden ratio, the key area precisely located on its golden section line, the ergonomic and exquisitely clear keys and the slightly rounded corners are all amazing. Capacity: 1TB Product size: 130mm x 81mm x 18mm Product weight: about 172g Interface type: USB3.0 Working temperature: -10 -40 Storage temperature: -20-60, File system: NTFS Compatible operating systems: for Windows7, Windows8, Vista, XP, Linux, OSX10.4.X, Android 4.0 or above. Colour:As Shown Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * SSD Hard Disk kit 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.