CommentStreams:6dffbb5d8838bb92ba0b6a1e487086a3

Hello, Because the interface is different； for Pi4+2.5 inch SATA SSD: ①x825 V2.0 Storage expansion board + x735 Power management board + X825-C8 metal case.

       for Pi3+2.5 inch SATA SSD:    x820  Storage expansion board  +  x735 Power management board + X820 metal case.

For more matching suits,please refer hereGEEKWORM NAS Family