Maximal Power 3-In-1 Portable Keychain Charger Power Bank Battery Pack 8-Pin Connector for iPhone 5/5c/5s with 8GB and Battery - Non-Retail Packaging - Black Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty 100% Compatible with original manufacturer equipment. USB Flash Drive gives 8GB of storage. Power Bank gives 1000mAH of charging power.works like USB to 8-Pin Connector cable too! only sold and shipped by amazon.com all other third party seller selling under this product is selling counterfeit non maximalpower product and not covered by maximal power's warranty