Back ViewFront panel controlsFront ViewLabel Description1 Menu2 Adjust up/Brightness & Contrast3 Adjust down/Automatic adjust4 Select/Input source Select5 Power (with power light indicator)Back view Back View with monitor standLabel Description Use1 Regulatory rating label Lists the regulatory approvals.2 Security lock slot To help secure your monitor.3 Barcode serial number label To contact Dell for technical support.4 VESA mounting holes (100mm)(Behind attached base plate) To mount the monitor.5 Cable management slot To organize cables by placing them through the slot.6 Dell Soundbar mounting brackets To attach the optional Dell Soundbar.