The MB453TRAY-2B is a 2.5"/3.5" HDD/SSD tray for FatCage (MB15X), DataCage (MB45X/ MB876) series internal mobile rack cages. It is interchangeable with the multi-bay ICYCube MB561 series and the single bay ICYBento MB559 series of external hard drive enclosures. Compatible ICY DOCK models . Single Bay: MB876SK-B Multi Bay: MB153SP-B, MB154SP-B, MB155SP-B, MB453SPF-B, MB454SPF-B, MB455SPF-B.