The MB559TRAY-2B is a 2.5"/3.5" HDD/SSD tray for Black color ICYBento (MB559) series and ICYCube (MB561) series external SATA HDD/SSD enclosures. It is interchangeable with the DataCage MB45X, MB876 series and Fatcage MB15X series internal HDD/SSD mobile rack backplane cages. Compatible ICY DOCK models. Single Bay: MB559U3S-1SB, MB559UEA-1SB, MB559UEA-1SMB, MB559UEB-1SB, MB559UEB-1SMB, MB559US-1SB, MB559US-1SMB Multi Bay: MB561U3S-4SB, MB561US-4SB-1.