This is a 3.5" hard drive (HDD) bracket for the Sony PlayStation2 fat / phat model.  This bracket securely holds your hard drive in the drive bay when using a network / hard drive adapter instead of holding it in place only by the electrical connections. Compatibility: Works with SATA and IDE hard drives. Compatible with all Sony PlayStation 2 fat models (SCPH 30000 & 50000). Does not fit SCPH-70000 and SCPH-90000 PS2 slim series. Maximum hard drive thickness is 1" (25mm).