You can use this kit to store your Sony ES UBP-X1000ES 4K Ultra HD Blu-ray player in a pro or home A/V rack. It takes up a 2U rack space. Your Sony player requires some room to breathe, so give it some extra space above and below for ventilation. Product highlights: optional rack-mounting kit for the Sony ES UBP-X1000ES 4K Ultra HD Blu-ray player fits in a single (2U) rack space needs a ventilated space above and below the player hardware included rack-mounting may block the player's Wi-Fi signal - wired internet connection recommended warranty: 1 year 60-day returns MFR # WSUBPRE1 Item # 158WSUBPR1 What's in the box: Sony WSUBPRE1 owner's manual Front bracket 2 Side brackets Six M4 x 6mm screws Six M5 x 18mm screws Six 10-32 x 3/4" screws 6 Washers Assembly Guide