HP SAS 3.5 PCB for Seagate ST3450857SS — 9FM066-035 / HPD6 / 100549572 K

Replacement PCB compatible with Seagate model ST3450857SS. Board identified by part number 9FM066-035 and board code 100549572 K, with revision HPD6. Designed for HP SAS 3.5-inch drive assemblies; verify matching part numbers before installation.