Connecting the Power CablesConnect the power cables to the expansion enclosure.1. Before connecting the power cables, make sure that the power switches on the expansion enclosure are in the OFF position.2. Connect the power cables to the power supplies in the expansion enclosure chassis.Figure 4. Power Cables3. Secure each power cable to the expansion enclosure chassis using the strain relief fasteners.4. Plug the other end of the power cables into a grounded electrical outlet or a separate power source such as an uninterruptedpower supply (UPS) or a power distribution unit (PDU).NOM Information (Mexico Only)The following information is provided on the device described in this document in compliance with the requirements of the officialMexican standards (NOM):Importer Dell Inc. de México, S.A. de C.VPaseo de la Reforma 2620-11 ° PisoCol. Lomas Atlas11950 México, D.F.Model number E03J and E04JSupply voltage 100–240 VACFrequency 50/60 HzCurrent consumption 8.6–4.3 ATechnical SpecificationsThe technical specifications of the SC400 series expansion enclosures are displayed in the following tables.DrivesSAS hard drives SC400: Up to 12 hot-swappable 3.5-inch 12 Gbps SAS hard drives or SAS solid state drives(SSDs)SC420: Up to 24 hot-swappable 2.5-inch 12 Gbps SAS hard drives or SAS solid state drives(SSDs)SC420F: Up to 24 hot-swappable 2.5-inch 12 Gbps SAS solid state drives (SSDs)NOTE: SC400 series expansion enclosures support self-encrypting drives (SEDs).5