Altronix T2KSK7F12 kit consists of Trove2 enclosure, TKS2 Keri Systems/Altronix backplane with one (1) 24VDC @ 10A power supply/charger, one (1) dual output fused access power controller, one (1) voltage regulator, one (1) dual input fused power distribution module, and one (1) fused access power controller.This kit also accommodate various combinations of Keri Systems boards for up to twelve (12) doors in a single enclosure. Trove simplifies board layout and wire management, reduces installation time and labor costs. Accommodates up to three (3) Keri Systems NXT-2D-MSCNE, NXT-4D-MSCNE or NXT-4X4NE boards.