Drive Bracket 3.50" to 5.25" Drive Mounting Brackets BKT-350-525-xxx Features: Description: 3.50" to 5.25" Hard Drive Mounting Brackets Brand or Distributor: HP Part Numbers: # 6053022B21 07 Front Piece # 6053023A66 01 3.5"-to-5.25" Frame Condition: Used, with signs of cosmetic wear and signs of use. Packaging: Non-retail packaging, in unprinted box or plastic bag. For use with or pulled from: (for reference only) Pulled from Dell HP ProLiant ML350 G5 Server HP StorageWorks AiO600 Generation 5.