Overview Reviews Product Description 'Adds 4x 2.5-inch to media bay (replacing existing 5.25'' bays) to the ThinkSystem ST550 The kit contains the backplane and the necessary cables as well as the necessary 4x 2.5-inch drive-bay cage. Connection to a RAID Controller or HBA is required' Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × LENOVO Lenovo ThinkSystem ST550 2.5' SATA/SAS 4-Bay Backplane kit (media bay conversion kit) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments