The HP v250w USB comes with a durable metal body. Capacity for this flash drive is 32GB. It can perform up to 25 MB/sec read and up to 8 MB/sec write speed. This pen drive weights 11.5g and the dimensions are 46.6 mm L x 15.8 mm W x 5.0 mm H. It supports 0°C to 65°C as Operating Temperature and -25°C to 85°C as Storage Temperature. It supports easy plug and play installation. It's an ultra-compact, clip-on USB Flash Drive. The Flexible hook makes it easy to attach it to keys, backpacks, handbags, etc. You can store and share all your documents, pictures, videos and MP3 files and take it with you where ever you go. It is compatible with Windows 2000, XP, Vista, 7, and Mac OS 10.3 and above. Warranty is Not Available for this model.