Metal Gear Rising: Revengeance - All Data Storage Locations

"In Metal Gear Rising: Revengeance, Data Storage are collectables that Raiden can pick up throughout the game. While collecting them all is optional, getting all 20 of them will unlock the Stun Blade, a weapon which gives Raiden a 20% chance to stun an enemy with every single strike. This is very useful, as stunned enemies instantly display prompts to perform an Execution. (In addition to collecting all Data Storage, the sword also costs 20,000 BP, which players will need to pay in order to get it.)" - click image for article