- Unassembled Security and storage only no charging. Compatible with Chromebook and Otterbox Defender Series. Accommodates the full Otterbox Defender case with cover! Sliding plastic dividers between tablet slots can be configured for wider devices. Dividers feature cable management clips and wraps. Please check required slot dimensions for your specific device. Slots measure 12"H x 1.02"W x 13.18"D.