The PKD-DK40107 kit includes a 4 CH H.264 standalone DVR and four indoor/outdoor IR security cameras providing everything you need to have your surveillance system up and running in your home or business quickly and easily. The DVR-H9124V is a 4 channel, fully integrated, real time, and hardware based standalone digital video recorder. This standalone DVR is based on an embedded Linux operating system and includes a remote control for easy setup and operation. With network access, VGA video output, and USB2.0 backup, this DVR is perfect for the home or small business. The DVR also features the most updated 3G mobile live! Preview via mobile phone.And it's Mac compatible.