JAR Systems Active Charge Power Bank 4-Pack with Dell Connectors 4-Pack - ACTIV-BNK - 20,000 mAh Active Charge Power Banks 65W Output - Mobile USB-C PD Charging with Power Banks and Charging Cables for Devices - 7.40 x 5.08 mm Included Emulator Adapter Cables Compatible with C11 and Other Dell Devices: