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This is a replacement logic board (PCB) for Toshiba 3.5-inch SATA desktop hard drives, identified by board numbers G4348A / A4348A and markings 31A0 M6 FKR37D, 2-994V-0, 1650 A6, A0C2B. It is compatible with high-capacity models including MD06ACA800 (8TB) and DT02/DT03 series 6TB10TB hard drives, commonly used in desktops, NAS, and external enclosures.
Designed for hard drive repair and data recovery, this PCB replaces damaged or non-functional original boards to resolve power, detection, or access issues. Each unit is pre-tested to ensure quality and stable operation after installation.
Note: To guarantee full compatibility, please swap the BIOS/ROM chip from your original PCB to this replacement board if firmware or date codes differ.