Patch 11.1.7 introduces the 
Durable Information Securing Container, a new upgradeable belt available through Overcharged Delves. If you’ve previously run Siren Isle, this piece might remind you of Cyrce’s Circle, yet a few notable differences could make or break its appeal across classes.
No Sockets, No Secondary Stats
Unlike traditional gear, this belt skips both flat secondary stats and sockets. It only has the Main Stat, and an effect that you can change.
Belt Effects
You can pick one of the following effects on the belt:
Charged Bolts – Your spells and abilities have a chance to turn you into a Lightning Rod striking a random enemy target within 40 yds for 0 Nature damage every 3 sec for 15 sec.
Cauterizing Bolts – Your spells and abilities have a chance to turn you into a Lightning Rod causing strikes that heal the lowest health friendly target within 40 yds for 341 every 3 sec for 15 sec.
Critical Chain – Your spells and abilities have a chance to trigger Critical Overload, increasing your Critical Strike by 22 every 2 sec for 20 sec.
Spark Burst – Your spells and abilities have a chance to trigger a Spark Burst granting you 120 Haste for 20 sec.
Static Charge – Your spells and abilities have a chance to grant you Static Charge, increasing your Versatility by 229 for 30 sec. Each of your next spells and abilities reduce the Versatility bonus by 5%.
Electric Current – You gain Electric Current upon entering combat, increasing your Mastery by 10 every 2 sec up to a maximum of 240 after 24 sec then cycling back down and repeating.
Charged Touch – Your heals have a chance to Spark jumping to the lowest health target within 40 yds, healing them for 1535.
Energy Shield – When you take damage, you have a chance to gain a Titan Energy Shield preventing up to 3184 damage for 10 sec. When the shield expires it deals 30% of the remaining absorb as Arcane damage split between enemies within 8 yds.
Charged Crystal – Your spells and attacks have a chance to send a Charged Bolt at your target that deals 1137 Nature damage split between targets within 8 yds.
Each effect must be collected from a different delve. When you right-click the belt, you will see a list of all the effects and their source.
Starts at Item Level 684, Weekly Quest Upgrade System
The belt starts at Item Level 684 and you can upgrade it to up to Item Level 700 by completing a weekly quest to obtain a 
Titan Memory Card. The familiar upgrade system encourages frequent participation in Overcharged Delves in Patch 11.1.7, over the course of the patch.
Bottom Line
Whether the upgradeable belt will be worth it for most classes is up to Blizzard to decide, but right now, with no flat secondary stats or sockets, it rather seems to be an optional piece of equipment rather than mandatory.
