10 | About Your DisplayBack ViewLabel Description Use1 Mounting provision for WR517 (optionalitem)For Dell Wireless Receiver :WR517(optional)2 Wire Saddle Use to handle display during installation3 Handle x 4 Use to move the display.4 VESA mounting holes (600 x 400 mm) To mount the display.5 Security lock slot Secures Optiplex with security cable lock(sold separately).6 Optiplex holder Use to hold a Micro Form Factor OptiplexPC.7 Allen key Use to tighten or loosen handle screws.8 Barcode, serial number, and Service TaglabelRefer to this label if you need to contactDell for technical support.9 Regulatory label List of approved regulatory labels.10 AC to optiplex (optional) AC power to optiplex power adapter.11 AC power connector To connect the display power cable.