It was first expected to contain up to 100 to 150 slots, but unable to store items with enchants, gems,[1][2] or reforged stats.[3] A more fully fleshed out preview revealed that the number of slots would be 80;[3] in addition to stripping all enchants and gems from items, items also have other enhancements removed, such as reforging and sockets.[4] The feature was introduced in combination with Transmogrification so players now have a place to store their beloved armor sets for transmogrifying later.[5]
To utilize the void storage feature players will need to visit one of the EtherealVaultkeepers in Orgrimmar, Stormwind City or the Pandaria faction hubs. The fee to unlock the Void Storage is 100[3]. Once unlocked, players will have access to 80 slots.
Players may place up to 9 items in the vault at once.
There is a 25 fee per item you want to store.
There is no fee for keeping items in storage once the deposit fee has been paid.