High Capacity 8GB Micro SD TF MicroSD TF Memory Card 8GB 8 GB with SD Adapter for Cellphone MP4/5 Operating shock rating of 2,000Gs, equivalent to a 10-foot drop to the floor. Capacities: 8GB. (1 Megabyte(MB) = 1,000,000 bytes; 1 Gigabyte (GB) = 1,000,000,000 bytes) Compliant with the Micro SD / TF card association specifications. Operating temperature: -13F to 185F (-25C to 85C). Storage temperature: -40F to 185F (-40C to 85C).