Check the listing for details. Royal Racks 21U Metal Rack, Black. Color: Black, Condition: New with tags. Listed at 329.99 USD. ROYAL Racks™ Metal Rack 21U (Black) In our ongoing mission to create the best line-up of racks on the market, we re-engineered our Royal Racks with a collaborative effort from the best creative minds in the industry. The new 2200 Series of metal cabinets are jam packed with custom features you’ll love. So, who’s behind the ingenious minds that helped develop these new racks? You, of course! That’s right; we listened to what you had to say about improving our installation screws, re-engineering our design to speed up the assembly process, and adding the accessories you wanted in order to make your installs simple. Out With The Old, And In With The New!We’ve re-designed these racks with a consistent thread size all the way through. We now provide two different screws which are different in length but share the same diameter. Our shorter of the two screws has been designed for assembling the rack. The smaller size allows you to build your rack in half the time. The longer screws are designed for installing accessories and they provide a more stable fit for securing equipment. Plus, we’ve incorporated a built-in non-conductive washer. Both are equipped with a self-starting tip making this rack simple to assemble and hassle-free. 4 X U = Smile On Your Face!Running out of accessory screws while on the job is always a pain, so we’ve developed a formula in order to prevent this from happening to you. Within every one of our Royal Racks comes a pack of accessory screws based on how many “U” spaces the rack has. For every 1U you’ll receive 4 accessory screws. Plus, you’ll receive an additional bag containing the shorter assembly screws.(Ex. If you have a 12u Rack you’ll receive 48 rack accessory screws, and if you have a 42u rack you’ll get 168.) Make sense? Royal Finish Manufactured from strong steel with a black powder coat finish, these Royal Racks are sure to look good for a long time. So Easy To Assemble! In order cut an extra step out of your assembly time, we’ve pre-installed the casters which offer 3” gray, non marring wheels…Also, Royal Racks come knocked down for lower shipping costs but can be assembled with all the bells and whistles in about 15 minutes.