- Eco-friendly Bamboo material, say 'No' to the plastic shell - Bamboo shell handcrafted, eco-friendly & sustainable - USB drive chip sourced from a reputable source: SanDisk - The option of USB2.0 or USB3.0 - Personalisation engraving your brand is possible, kindly reach out to us - Warranty 1 year, worry-free USB 2.0 transfer speed is 480 megabits per second (Mbps) while USB 3.0 transfer speed is 4,800 Mbps. USB 3.0 is approximately ten times faster than USB 2.0 Operating Temperature: 32° F to 140° F (0° C to 60° C) Storage Temperature: -4° F to 185° F (-25° C to 85° C) Power consumption: 4.5V - 5.5V Support OS: Desktop or notebook computer with USB port Windows 7, 8 Window Vista Window XP / 2000 / ME Macintosh Mac OS 9.0 or later and Mac OS 10.1 or later The actual available memory on the device is less than what list on the package. 32GB=33,000,000,000 Bytes. In OS system, it would be displayed as 32,000,000,000 Bytes/1024/1024/1024 = 31.33GB. A certain portion (1~3%) of the storage capacity might reserve for firmware and maintenance use.