Specification Binding : Personal Computers Brand : IAENCLOSURES.COM Color : Black Powder Paint Label : Industrial Automation and Enclosures Inc. Manufacturer : Industrial Automation and Enclosures Inc. MaterialType : Alloy Steel Model : IAB104V10-4U NumberOfItems : 1 PackageDimensions_Weight : 2 PackageDimensions : L:0.00000000000 X W:0.00000000000 X H:0.00000000000 PartNumber : IAB104V10--4U ProductGroup : PC Accessory ProductTypeName : SYSTEM_CABINET Publisher : Industrial Automation and Enclosures Inc. Size : 4U x 4" SmallImage_Height : 54 SmallImage_URL : https://m.media-amazon.com/images/I/31Um5Yn1taL._SL75_.jpg SmallImage_Width : 75 Studio : Industrial Automation and Enclosures Inc. Title : IAB104V10-4U 4U 4 inch Universal Rack Extender for Industrial Standard 19 inch Relay Rack or 4 Post Rack Cabinet. Weight : 2 WeightUnit : pounds