Comes with an 1U Cover Plate,Open Frame Construction Enables Quick Access to Rackmount System,Easy to Transport with Rolling Caster,Manufactured in Accordance with ANSI / EIARS-310-D, IEC297-2, DIN41491 (PART 1), DIN41494 (PART7) and GB / T3047.2-921 Standards,Modular Design, Easily Assemble and Disassemble For Logistic and Relocation of Cabinet to Enable Cost-Effective Solution,Locking Mechanism Design on Casters,Comes with M6 Mounting Screws and Cage Nuts