4U of rack-mount space Fits standard rack-mount equipment Rail depth Solid compact design Locking glass door, can be installed to open to the left or right 1 sets of keys Top and bottom open brackets for cable and wire access Venting slots throughout for equipment cooling Our digital images may vary. However, different monitors may cause colors to vary slightly. Some of our items are handcrafted and/or hand finished. Color can vary and slight imperfections in the metal work are normal and considered evidence of the hand-finishing process, which adds character and authenticity to those items. NOTE: This rack is not assembled.