* banlist.dat: stores the IPs/Subnets of banned nodes
* blocks/blk000??.dat: block data (custom, 128 MiB per file)
* blocks/rev000??.dat; block undo data (custom)
* blocks/index/*; block index (LevelDB)
* chainstate/*; block chain state database (LevelDB)
* dash.conf: contains configuration settings for dashd or dash-qt
* dashd.pid: stores the process id of dashd while running
* database/*: BDB database environment; only used for wallet
* db.log: wallet database log file
* debug.log: contains debug information and general logging generated by dashd or dash-qt
* evodb/*: special txes and quorums database
* fee_estimates.dat: stores statistics used to estimate minimum transaction fees and priorities required for confirmation
* governance.dat: stores data for governance obgects
* instantsend.dat: stores data for instantsend locks
* llmq/*: quorum signatures database
* mempool.dat: dump of the mempool's transactions
* mncache.dat: stores data for masternode list
* netfulfilled.dat: stores data about recently made network requests
* peers.dat: peer IP address database (custom format)
* wallet.dat: personal wallet (BDB) with keys and transactions
* .cookie: session RPC authentication cookie (written at start when cookie authentication is used, deleted on shutdown)
* onion_private_key: cached Tor hidden service private key for `-listenonion`