Those NVR/DVR have rack mount ears if you are racking them, you should be able to get your sales to throw them in if you ask (doesn't come in the box and have to be ordered separately). LTB191D for 1U case (17.5 inch from the front) LTB380D for the 1U compact case (15 inch from the front) but nothing for the mini compact though (12 inches from the front)
