Material: zinc alloy Color: Silver Read and write speed: 12MB / S Size: 36.8 x 12.3 x 4.6mm Net weight: 12.2g Working temperature: 0 ℃ -60 ℃ Storage temperature: -25 ℃ -85 ℃ Applicable type: Window Vista 7/10 Os and adive About capacity: 32GB=approximately 28.5GB-30GB 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 Package Contents: 2 x 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.