The product has Dahua-patented appearance. It is easy to hold and plug because of the protruding edge. With two ports, it is compatible with devices having Type-A and Type-C ports, easy for users to read and write files on devices with different ports. Smooth surface can be engraved with words to turn the product to a personalized gift. The product can be used with desktops, laptops, mobile phones, tablets, speakers and other devices that have USB port. It can also transfer data fast between computers and mobile phones. · Exclusive appearance with metal casing · Shockproof and anti-drop for great quality · High-speed read/write; easy to use Capacity: 256 GB Interface: USB3.2 Gen1 Read Speed: 20 MB/s–150 MB/s Write Speed: 6 MB/s–100 MB/s File System: exFAT Operating Temperature: 0°C to 60°C Compatible System: Windows 7/8/10; macOS10.5+; Linux 2.4.x+ Product Dimensions: 67.3 mm × 18.2 mm × 12.8 mm Net Weight: About 28 g Grey metal colour