Nikon has placed a few controls on the front of the camera, just to the left of the lens. At the top is the flash activation and control button followed by the exposure bracketing button. Towards the bottom is the unlock button for releasing the lens from the mount and at the very bottom is the switch for manual and autofocus.
On the back right side of the camera you will find the AE-L/AF-L button, command dial, focus selector lock and the multi-selector with the OK button on the inside. Below that is the button for live view mode, which has a switch for still image and video coupled around it. At the very bottom is the camera's info button.
Starting at the top on the left side is the release shooting mode dial for choosing your drive mode (burst modes, self-timer, etc.). The top two buttons handle the camera's playback and ability to delete images. Along the side of the LCD you will find the Menu button for all of the camera settings, help/protect/WB, zoom in/image quality, zoom out/ISO and the i-button, which changes the amount and type of information shown on the LCD as well as retouching images.
On the left side of the camera you will find its many I/O ports. Starting at the top we have the external mic input and USB connection. In the middle you will find the HDMI output for viewing images and videos on any HDTV. Finally on the bottom is the headphone jack and accessory terminal. This allows you to add exciting features like a GPS or Wireless adapter.
For recording your captured images and videos, Nikon has included two SD/SDHC/SDXC memory card slots. Nikon allows you to use the second slot for overflow, backup or to capture JPEG to one card and RAW to the other. The camera is shown here with the SanDisk Extreme Pro UHS-1, 95MB/s 8GB SDHC memory card that was used to test the camera.
Powering the D7100 is a 7.0V, 1900mAh rechargeable Li-Ion battery. This battery provides enough power to capture 950 single shot images, 3550 burst images or up to 100 minutes of Full HD video on a single charge. To keep your battery and any spares charged, Nikon has also included the above quick charger.
Shown above is the Wireless adapter WU-1a, which gives the D7100 and a few other Nikon cameras, wireless capabilities. A similar adapter can also be plugged in here for GPS capabilities. Only one of these adapters can be used at a time.