Genuine Toshiba Satellite internal laptop computer system mainboard replacement part. Built on a green circuit substrate layer featuring factory data stickers containing technical parameters and configuration specifications. Tracking elements display information including product part number PN:1310A2423502, identification code BD SYSTEM, spare part sequence SPS:V000225140, engineering revision REV:1.00, manufacture date code J1054, and serial sequence IEC S/N:5S15M20R91. Assembly incorporates dual internal horizontal laptop DDR3 memory RAM expansion module clips topped with a white label sticker displaying hardware signatures UUID:417A91A0835711E0828700266CBFAA32 and LAN MAC:00266CBFAA32. Upper section houses an integrated processor retention bracket plate layout paired with an onboard heavy-duty copper heat-pipe heat sink dissipation rail. Board traces and interface connector slots are completely clean and intact with minor typical storage handling wear. Please see photos for exact condition.