CD-ROM with Manual and Software . Quick Installation Guide . Power Adapter . Power Cable Clip . CAT5 Ethernet Cable Note: Using a power supply with a different voltage than the one included with the DNS-323 will cause damage and void the warranty for this product. If any of the above items are missing, please contact your reseller. System Requirements For best results, the following system requirements are recommended: . Computer with: 1GHz processor / 512 MB RAM / 200 MB available space / CD-RO