The Storage Key A is a key item in Resident Evil 6.
This key is needed along with Storage Key B and Storage Key C to go through closed gates in the Tatchi Market.
It can be found in the market near the corpse which is located in the alley where Leon and Helena can go after disabling the electric cable lying on the wet floor.
- ?, ed (2012). BIOHAZARD 6 Official Complete Guide. Famitsu.