网页Regulatory Type: D04S001, D07D001, D12M001 2012 - 05. 11. power-supply diagnostic button 12. power cable connector ... 15. security cable slot 16. padlock ring Desktop — Front And Back View Figure 2. Front And Back View Of Desktop 1. optical drive 2. optical-drive eject button ... computer, go to support.dell.com. Power Coin-cell battery 3 V ...